Our top 10, at a glance.
Choose a physical moisture meter or sensor for container plants, matching pot depth, growing medium and local or connected readout.
- #1Luster Leaf Rapitest Moisture Meter 1820Luster Leaf Rapitest Moisture Meter 1820
- #2SUStee M AquameterSUStee M Aquameter
- #3Reotemp Garden and Compost Moisture Meter MM15Reotemp Garden and Compost Moisture Meter MM15
- #4Dr.meter S30 3-in-1 Soil MeterDr.meter S30 3-in-1 Soil Meter
- #5Bluelab Pulse Multimedia EC/MC MeterBluelab Pulse Multimedia EC/MC Meter
- #6TFA Dostmann Analogue Garden CombitesterTFA Dostmann Analogue Garden Combitester
- #7Ecowitt WH51 Soil Moisture SensorEcowitt WH51 Soil Moisture Sensor
- #8Netro Whisperer 2nd GenNetro Whisperer 2nd Gen
- #9AC Infinity AI Soil SensorAC Infinity AI Soil Sensor
- #10GARDENA Soil Moisture Sensor 1867GARDENA Soil Moisture Sensor 1867
All 10 picks, in order.
- #1
Luster Leaf Rapitest Moisture Meter 1820
Luster Leaf Rapitest Moisture Meter 1820
A simple local reading with a separate probe handle
Why it fits
- The maker describes a 1–10 scale showing increasing soil moisture; it is a spot-check reading rather than a moisture percentage. The tethered probe lets you hold the meter separately. Instructions say insertion depth depends on the container and suggest checking more than one location. No battery is required. Remove and wipe the probe after testing; pull its handle rather than the wire and do not leave it in soil for extended periods. [1] [2] [3]
Model: 1820 · Tethered probe · US
- #2
SUStee M Aquameter
SUStee M Aquameter
A visible indicator that stays in one pot
Why it fits
- SUStee uses a replaceable absorbent core and a blue-to-white indicator, rather than a numbered electronic display; the maker relates the colour response to soil water availability. The medium unit is listed as 180 mm overall height. Insert with the soil between the marked triangles; overall height is not the insertion depth. The maker permits leaving it in the pot without batteries. Its FAQ calls for core replacement when response fails and describes clogging or very coarse media as possible problems. [4] [5] [6]
Before you choose
- The colour is a cue to interpret against that plant’s needs. Core replacement is ongoing upkeep, and colour changes can take time; this is not an instant percentage reading. [4] [5] [6]
Check before buying:
- Independent accuracy and a universal plant-specific watering threshold are not established here.
Model: SUStee M · Medium indicator · US
- #3
Reotemp Garden and Compost Moisture Meter MM15
Reotemp Garden and Compost Moisture Meter MM15
A deeper probe with adjustable relative calibration
Why it fits
- Reotemp gives a relative wetness dial, not percent moisture. Its manual describes conductivity-based sensing and a calibration screw set using a sample at the chosen target moisture. The MM15 has a 15-inch stainless-steel stem, with the catalog listing a 5/16-inch diameter. It uses one AAA battery. The instructions say to remove it after reading and store it dry; avoid forcing the stem through compacted soil or dense wood chips. [7] [8] [9]
Before you choose
- Salt content can push readings higher even at unchanged moisture. A long stem helps reach a large container but does not make it suitable for forcing through roots or stones. [7] [8] [9]
Check before buying:
- Independent accuracy, sensitivity area and suitability for a particular shallow pot are unconfirmed here.
Model: MM15 · 15-inch stem · US
- #4
Dr.meter S30 3-in-1 Soil Meter
Dr.meter S30 3-in-1 Soil Meter
Two documented 20 cm probes for a local soil check
Why it fits
- Dr.meter lists a 1–10 moisture scale alongside light and pH functions for the S30. The maker specifies two 20 cm probes, distinguishing probe length from the meter’s overall size. No battery is needed. The maker directs users to remove and wipe the probes after each use, avoid liquids and not force them into hard soil. [10] [11] [12]
Before you choose
- The additional functions do not establish tested pH or light accuracy. Use the moisture scale as a local reading and remove the probes after the check. [10] [11] [12]
Check before buying:
- Sensing principle, adjustable moisture calibration and independent accuracy are unconfirmed here.
Model: S30 · Green two-probe meter · US
- #5
Bluelab Pulse Multimedia EC/MC Meter
Bluelab Pulse Multimedia EC/MC Meter
Recorded spot checks in compatible growing media
Why it fits
- Pulse reports moisture, EC and temperature through its Bluetooth app, with range-status LEDs on the meter. The app supports calibration for the specific growing medium. Its stainless-steel probes are 200 mm long; the active sensing section is the lower 50 mm, with one tip emitting measurement frequencies and the other detecting them. It uses one AA alkaline battery. Bluelab specifies a minimum 2-litre pot and excludes media with large voids such as perlite and permanently deformable media such as rockwool. [13] [14] [15]
Before you choose
- Check pot size and medium before buying. A numeric moisture result depends on the selected or custom medium calibration; it is not a universal watering trigger. [13] [14] [15]
Check before buying:
- Independent accuracy and present phone/app compatibility should be checked for the intended device.
Model: METPULSE · Bluetooth handheld · US
- #6
TFA Dostmann Analogue Garden Combitester
TFA Dostmann Analogue Garden Combitester
A battery-free analogue unit with a documented overall size
Why it fits
- TFA describes an analogue display combining soil moisture, light and pH functions. The plastic tester is listed at 52 × 38 × 300 mm overall and 63 g; those dimensions do not establish usable insertion depth. The maker says no batteries are needed and lists the tester and instructions as the supplied contents. [16] [17] [18]
Before you choose
- The documented footprint helps a storage or access check, but probe depth and moisture calibration need confirmation from the supplied instructions before use. [16] [17] [18]
Check before buying:
- Sensing principle, probe-only length, user calibration and independent accuracy are unconfirmed here.
Model: 48.1000 · Analogue combination tester · US
- #7
Ecowitt WH51 Soil Moisture Sensor
Ecowitt WH51 Soil Moisture Sensor
Installed monitoring in an Ecowitt setup
Why it fits
- WH51 has no local display. A compatible gateway such as GW1100 or GW2000, sold separately, sends its moisture readings to WSView Plus; low/high AD values can be manually calibrated. This pick is the North American 915 MHz sensor. The maker warns against forcing or twisting its probe through hard soil, gravel or roots. One AA battery is required and not included. Match the sensor’s radio frequency to the compatible gateway or console; the sensor alone does not provide the described app setup. [19] [20] [21]
Before you choose
- Include the gateway and battery in the setup budget. The displayed moisture percentage and calibration endpoints do not establish a common watering threshold for different potting mixes. [19] [20] [21]
Check before buying:
- Exact sensing principle, insertion depth and independent accuracy are unconfirmed here.
Model: WH51 · North America 915 MHz single sensor · US
- #8
Netro Whisperer 2nd Gen
Netro Whisperer 2nd Gen
A rechargeable sensor for remote monitoring without a sprinkler controller
Why it fits
- Whisperer 2nd Gen monitors moisture, temperature and light through the Netro app and cloud service; the maker says it can collect data without a Sprite sprinkler controller. This generation includes a solar panel and USB charging port, with an included 800 mAh rechargeable battery. It requires 2.4 GHz Wi-Fi for internet uploads and remote app access; a 5 GHz-only network does not meet the stated Wi-Fi specification. [22] [23] [24]
Before you choose
- Plan for charging and Wi-Fi at the pot. Remote viewing relies on the service connection, and the sensor reading alone does not prescribe how much to water. [22] [23] [24]
Check before buying:
- Sensing principle, calibration procedure and usable probe depth are unconfirmed; confirm dimensions because available maker records differ.
Model: Whisperer 2nd Gen · Solar and USB charging sensor · US
- #9
AC Infinity AI Soil Sensor
AC Infinity AI Soil Sensor
A soil input for an existing AC Infinity AI controller
Why it fits
- AC-SLS3 sends moisture and saturation readings to AC Infinity AI controllers and the associated app; it is an accessory for that controller system. It has a detachable stem for placement and a 144-inch cord. The listed sensor dimensions are 1.41 × 2.83 × 0.55 inches, not a usable insertion-depth specification. The maker states one soil sensor per AI controller natively. Its page also references a splitter inconsistently, so confirm splitter availability and compatibility before planning more sensors. [25] [26] [27]
Before you choose
- Confirm the exact AI controller before ordering. The controller requirement is part of the purchase; do not assume compatibility with other AC Infinity controller families. [25] [26] [27]
Check before buying:
- Power arrangement, sensing principle, calibration and usable insertion depth are unconfirmed here.
Model: AC-SLS3 · Sensor for Controller AI+ · US
- #10
GARDENA Soil Moisture Sensor 1867
GARDENA Soil Moisture Sensor 1867
A moisture input for compatible GARDENA irrigation
Why it fits
- GARDENA describes electrothermal sensing: a felt-covered metal tip is heated and moisture is inferred from cooling time. Readings are shown on a compatible Water Control. The maker lists a 5-metre cable and suitability for plant pots. Its manual calls for a hole at least 12 cm deep with full soil contact around the tip. It requires two AA alkaline batteries, not included. Adjustable switching points depend on the connected Water Control model and firmware; some older controls use a fixed setting. [28] [29] [30]
Before you choose
- Allow enough container depth for the installation and check the exact controller connection and firmware. It is a wired irrigation accessory rather than a handheld readout. [28] [29] [30]
Check before buying:
- Current US package, local stock and compatibility with the buyer’s exact controller need confirmation; source product page is the Canadian maker edition.
Model: 1867 · Wired Water Control sensor · US
The details, side by side.
| What matters | #1Luster Leaf Rapitest Moisture Meter 1820 | #2SUStee M Aquameter | #3Reotemp Garden and Compost Moisture Meter MM15 | #4Dr.meter S30 3-in-1 Soil Meter | #5Bluelab Pulse Multimedia EC/MC Meter | #6TFA Dostmann Analogue Garden Combitester | #7Ecowitt WH51 Soil Moisture Sensor | #8Netro Whisperer 2nd Gen | #9AC Infinity AI Soil Sensor | #10GARDENA Soil Moisture Sensor 1867 |
|---|---|---|---|---|---|---|---|---|---|---|
| Workflow | The maker describes a 1–10 scale showing increasing soil moisture; it is a spot-check reading rather than a moisture percentage. [1] | SUStee uses a replaceable absorbent core and a blue-to-white indicator, rather than a numbered electronic display; the maker relates the colour response to soil water availability. [4] | Reotemp gives a relative wetness dial, not percent moisture. Its manual describes conductivity-based sensing and a calibration screw set using a sample at the chosen target moisture. [7] | Dr.meter lists a 1–10 moisture scale alongside light and pH functions for the S30. [10] | Pulse reports moisture, EC and temperature through its Bluetooth app, with range-status LEDs on the meter. The app supports calibration for the specific growing medium. [13] | TFA describes an analogue display combining soil moisture, light and pH functions. [16] | WH51 has no local display. A compatible gateway such as GW1100 or GW2000, sold separately, sends its moisture readings to WSView Plus; low/high AD values can be manually calibrated. [19] | Whisperer 2nd Gen monitors moisture, temperature and light through the Netro app and cloud service; the maker says it can collect data without a Sprite sprinkler controller. [22] | AC-SLS3 sends moisture and saturation readings to AC Infinity AI controllers and the associated app; it is an accessory for that controller system. [25] | GARDENA describes electrothermal sensing: a felt-covered metal tip is heated and moisture is inferred from cooling time. Readings are shown on a compatible Water Control. [28] |
| Form factor | The tethered probe lets you hold the meter separately. Instructions say insertion depth depends on the container and suggest checking more than one location. [2] | The medium unit is listed as 180 mm overall height. Insert with the soil between the marked triangles; overall height is not the insertion depth. [5] | The MM15 has a 15-inch stainless-steel stem, with the catalog listing a 5/16-inch diameter. [8] | The maker specifies two 20 cm probes, distinguishing probe length from the meter’s overall size. [11] | Its stainless-steel probes are 200 mm long; the active sensing section is the lower 50 mm, with one tip emitting measurement frequencies and the other detecting them. [14] | The plastic tester is listed at 52 × 38 × 300 mm overall and 63 g; those dimensions do not establish usable insertion depth. [17] | This pick is the North American 915 MHz sensor. The maker warns against forcing or twisting its probe through hard soil, gravel or roots. [20] | This generation includes a solar panel and USB charging port, with an included 800 mAh rechargeable battery. [23] | It has a detachable stem for placement and a 144-inch cord. The listed sensor dimensions are 1.41 × 2.83 × 0.55 inches, not a usable insertion-depth specification. [26] | The maker lists a 5-metre cable and suitability for plant pots. Its manual calls for a hole at least 12 cm deep with full soil contact around the tip. [29] |
| Compatibility | No battery is required. Remove and wipe the probe after testing; pull its handle rather than the wire and do not leave it in soil for extended periods. [3] | The maker permits leaving it in the pot without batteries. Its FAQ calls for core replacement when response fails and describes clogging or very coarse media as possible problems. [6] | It uses one AAA battery. The instructions say to remove it after reading and store it dry; avoid forcing the stem through compacted soil or dense wood chips. [9] | No battery is needed. The maker directs users to remove and wipe the probes after each use, avoid liquids and not force them into hard soil. [12] | It uses one AA alkaline battery. Bluelab specifies a minimum 2-litre pot and excludes media with large voids such as perlite and permanently deformable media such as rockwool. [15] | The maker says no batteries are needed and lists the tester and instructions as the supplied contents. [18] | One AA battery is required and not included. Match the sensor’s radio frequency to the compatible gateway or console; the sensor alone does not provide the described app setup. [21] | It requires 2.4 GHz Wi-Fi for internet uploads and remote app access; a 5 GHz-only network does not meet the stated Wi-Fi specification. [24] | The maker states one soil sensor per AI controller natively. Its page also references a splitter inconsistently, so confirm splitter availability and compatibility before planning more sensors. [27] | It requires two AA alkaline batteries, not included. Adjustable switching points depend on the connected Water Control model and firmware; some older controls use a fixed setting. [30] |
Choose the reading workflow first
Rapitest and Dr.meter are remove-after-use checks. SUStee is designed to remain in a pot, with a colour window and replacement core. Pulse records spot measurements on a phone. Ecowitt, AC Infinity and GARDENA need compatible gateway or controller hardware; Netro can collect data without a sprinkler controller but still needs Wi-Fi for remote uploads. Count those requirements when choosing a setup. [3] [12] [4] [6] [13] [19] [25] [28] [22] [24]
Match depth and medium to the sensor
Reotemp’s MM15 has a 15-inch stem; Dr.meter specifies two 20 cm probes. Pulse separates its 200 mm probe length from the active lower 50 mm and requires a pot of at least 2 litres. SUStee uses insertion marks, while GARDENA’s installation calls for a hole at least 12 cm deep and full contact around the tip. Do not substitute total device height for usable depth or force a probe through obstacles. [8] [9] [11] [12] [14] [15] [5] [29] [20]
Interpret a reading for that plant and potting mix
Reotemp’s relative dial is calibrated against a chosen target sample, and salts can change its response. Pulse allows medium-specific moisture calibration; Ecowitt provides low/high AD adjustment. GARDENA’s switching-point adjustment depends on the controller. These are different reference systems, so matching numbers across devices or assigning one watering threshold to every plant is not justified by this comparison. Treat a reading as one input alongside the plant’s requirements and the supplied instructions. [7] [13] [19] [30]
How we compared.
Source-based comparison of maker pages and instructions read October 3, 2026. A focused reading of SwampPotato’s r/plants post described sharply different readings with probe placement; that individual account prompted a depth and calibration check, not a conclusion about all owners or brands. Ranked order starts with simple pot checks and a passive indicator, then deeper probes and specialist connected setups. Ten distinct physical products; sizes, colours and gateway bundles are not extra picks. No hands-on accuracy, watering, battery-life or durability tests. Readings are aids to interpreting a particular medium and plant, not universal watering instructions. Missing sensing principles, calibration details and insertion depths are explicitly flagged; an overall dimension is not usable probe depth.
How we chooseSources
Official product documentation, reviewed October 3, 2026.
Luster Leaf · US · Read October 3, 2026
Luster Leaf · US · Read October 3, 2026
Cabinotier · US · Read October 3, 2026
Cabinotier · US · Read October 3, 2026
Cabinotier · US · Read October 3, 2026
Reotemp · US · Read October 3, 2026
Reotemp · US · Read October 3, 2026
Dr.meter · US · Read October 3, 2026
Bluelab · US · Read October 3, 2026
Bluelab · US · Read October 3, 2026
Bluelab · US · Read October 3, 2026
TFA Dostmann · US · Read October 3, 2026
Ecowitt · US · Read October 3, 2026
Netro · US · Read October 3, 2026
AC Infinity · US · Read October 3, 2026
GARDENA · US · Read October 3, 2026
GARDENA · US · Read October 3, 2026
Reddit r/plants · US · Read October 3, 2026
Detailed source notes
- Luster Leaf Rapitest Moisture Meter 1820: The maker describes a 1–10 scale showing increasing soil moisture; it is a spot-check reading rather than a moisture percentage.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
Luster Leaf Rapitest Moisture Meter 1820 source details · Maker-authored1820 instructions102218: English P1 cleaning, tethered-probe handling, scale1–10, varying pot depth and moisture pockets; no extended insertion.
The maker describes a 1–10 scale showing increasing soil moisture; it is a spot-check reading rather than a moisture percentage.Luster Leaf Rapitest Moisture Meter 1820 battery details · Maker-authored1820 instructions: P1 ready for use, no batteries; relative1–10 increasing moisture; at least two readings; clean and remove after use.
The maker describes a 1–10 scale showing increasing soil moisture; it is a spot-check reading rather than a moisture percentage.Checked October 3, 2026
- Luster Leaf Rapitest Moisture Meter 1820: The tethered probe lets you hold the meter separately. Instructions say insertion depth depends on the container and suggest checking more than one location.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
Luster Leaf Rapitest Moisture Meter 1820 source details · Maker-authored1820 instructions102218: English P1 cleaning, tethered-probe handling, scale1–10, varying pot depth and moisture pockets; no extended insertion.
The tethered probe lets you hold the meter separately. Instructions say insertion depth depends on the container and suggest checking more than one location.Checked October 3, 2026
- Luster Leaf Rapitest Moisture Meter 1820: No battery is required. Remove and wipe the probe after testing; pull its handle rather than the wire and do not leave it in soil for extended periods.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
Luster Leaf Rapitest Moisture Meter 1820 battery details · Maker-authored1820 instructions: P1 ready for use, no batteries; relative1–10 increasing moisture; at least two readings; clean and remove after use.
No battery is required. Remove and wipe the probe after testing; pull its handle rather than the wire and do not leave it in soil for extended periods.Checked October 3, 2026
- SUStee M Aquameter: SUStee uses a replaceable absorbent core and a blue-to-white indicator, rather than a numbered electronic display; the maker relates the colour response to soil water availability.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
SUStee M Aquameter source details · Sizes section middle180mm overall unit; pF-related colour design; replaceable core; USA/Canada purchase region.
SUStee uses a replaceable absorbent core and a blue-to-white indicator, rather than a numbered electronic display; the maker relates the colour response to soil water availability.SUStee M Aquameter faq details · FAQ: blue/white reading, capillary activation, soil between triangular marks, coarse medium/blocked inlet, read in pot; core may need replacing6–12months with variable response time.
SUStee uses a replaceable absorbent core and a blue-to-white indicator, rather than a numbered electronic display; the maker relates the colour response to soil water availability.Checked October 3, 2026
- SUStee M Aquameter: The medium unit is listed as 180 mm overall height. Insert with the soil between the marked triangles; overall height is not the insertion depth.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
SUStee M Aquameter source details · Sizes section middle180mm overall unit; pF-related colour design; replaceable core; USA/Canada purchase region.
The medium unit is listed as 180 mm overall height. Insert with the soil between the marked triangles; overall height is not the insertion depth.SUStee M Aquameter faq details · FAQ: blue/white reading, capillary activation, soil between triangular marks, coarse medium/blocked inlet, read in pot; core may need replacing6–12months with variable response time.
The medium unit is listed as 180 mm overall height. Insert with the soil between the marked triangles; overall height is not the insertion depth.Checked October 3, 2026
- SUStee M Aquameter: The maker permits leaving it in the pot without batteries. Its FAQ calls for core replacement when response fails and describes clogging or very coarse media as possible problems.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
SUStee M Aquameter faq details · FAQ: blue/white reading, capillary activation, soil between triangular marks, coarse medium/blocked inlet, read in pot; core may need replacing6–12months with variable response time.
The maker permits leaving it in the pot without batteries. Its FAQ calls for core replacement when response fails and describes clogging or very coarse media as possible problems.SUStee M Aquameter power details · Actual Japanese maker staff post June15,2025. No batteries; can remain inserted; cotton core decomposes and is replaceable. This is product information, not independent owner evidence.
The maker permits leaving it in the pot without batteries. Its FAQ calls for core replacement when response fails and describes clogging or very coarse media as possible problems.Checked October 3, 2026
- Reotemp Garden and Compost Moisture Meter MM15: Reotemp gives a relative wetness dial, not percent moisture. Its manual describes conductivity-based sensing and a calibration screw set using a sample at the chosen target moisture.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
Reotemp Garden and Compost Moisture Meter MM15 manual details · 2018 series guide P2 calibration sample targetset5,1AAAinstalled, do not force hard soil; P3 electrical current conductivity, salt changes result, remove and store cool/dry.
Reotemp gives a relative wetness dial, not percent moisture. Its manual describes conductivity-based sensing and a calibration screw set using a sample at the chosen target moisture.Reotemp Garden and Compost Moisture Meter MM15 source details · 2025 maker catalog P7: MM15 stem15in, stainlesssteel5/16inch diameter, relativewetness,1AAA, no percent moisture and salt sensitivity.
Reotemp gives a relative wetness dial, not percent moisture. Its manual describes conductivity-based sensing and a calibration screw set using a sample at the chosen target moisture.Checked October 3, 2026
- Reotemp Garden and Compost Moisture Meter MM15: The MM15 has a 15-inch stainless-steel stem, with the catalog listing a 5/16-inch diameter.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
Reotemp Garden and Compost Moisture Meter MM15 source details · 2025 maker catalog P7: MM15 stem15in, stainlesssteel5/16inch diameter, relativewetness,1AAA, no percent moisture and salt sensitivity.
The MM15 has a 15-inch stainless-steel stem, with the catalog listing a 5/16-inch diameter.Checked October 3, 2026
- Reotemp Garden and Compost Moisture Meter MM15: It uses one AAA battery. The instructions say to remove it after reading and store it dry; avoid forcing the stem through compacted soil or dense wood chips.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
Reotemp Garden and Compost Moisture Meter MM15 manual details · 2018 series guide P2 calibration sample targetset5,1AAAinstalled, do not force hard soil; P3 electrical current conductivity, salt changes result, remove and store cool/dry.
It uses one AAA battery. The instructions say to remove it after reading and store it dry; avoid forcing the stem through compacted soil or dense wood chips.Reotemp Garden and Compost Moisture Meter MM15 source details · 2025 maker catalog P7: MM15 stem15in, stainlesssteel5/16inch diameter, relativewetness,1AAA, no percent moisture and salt sensitivity.
It uses one AAA battery. The instructions say to remove it after reading and store it dry; avoid forcing the stem through compacted soil or dense wood chips.Checked October 3, 2026
- Dr.meter S30 3-in-1 Soil Meter: Dr.meter lists a 1–10 moisture scale alongside light and pH functions for the S30.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
Dr.meter S30 3-in-1 Soil Meter source details · Actual makerbody: modelS30 two20cmprobes;1–10moisture, light/pH functions, no battery; remove wipe afteruse, no liquids/hardsoil, no prolonged insertion.
Dr.meter lists a 1–10 moisture scale alongside light and pH functions for the S30.Checked October 3, 2026
- Dr.meter S30 3-in-1 Soil Meter: The maker specifies two 20 cm probes, distinguishing probe length from the meter’s overall size.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
Dr.meter S30 3-in-1 Soil Meter source details · Actual makerbody: modelS30 two20cmprobes;1–10moisture, light/pH functions, no battery; remove wipe afteruse, no liquids/hardsoil, no prolonged insertion.
The maker specifies two 20 cm probes, distinguishing probe length from the meter’s overall size.Checked October 3, 2026
- Dr.meter S30 3-in-1 Soil Meter: No battery is needed. The maker directs users to remove and wipe the probes after each use, avoid liquids and not force them into hard soil.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
Dr.meter S30 3-in-1 Soil Meter source details · Actual makerbody: modelS30 two20cmprobes;1–10moisture, light/pH functions, no battery; remove wipe afteruse, no liquids/hardsoil, no prolonged insertion.
No battery is needed. The maker directs users to remove and wipe the probes after each use, avoid liquids and not force them into hard soil.Checked October 3, 2026
- Bluelab Pulse Multimedia EC/MC Meter: Pulse reports moisture, EC and temperature through its Bluetooth app, with range-status LEDs on the meter. The app supports calibration for the specific growing medium.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
Bluelab Pulse Multimedia EC/MC Meter source details · ProductMETPULSE: moisture/EC/temp Bluetoothapp;LEDin/outofrange,8in200mmstainlessprobes;1AAalkaline,minpot2litres, excludes largevoidPerlite/permanentlydistortedRockwool.
Pulse reports moisture, EC and temperature through its Bluetooth app, with range-status LEDs on the meter. The app supports calibration for the specific growing medium.Bluelab Pulse Multimedia EC/MC Meter calibration details · Makerapp custommedia moisturecalibration at consistentdepth; maximumwaterholdingcapacityreference; moistureonlynotEC.
Pulse reports moisture, EC and temperature through its Bluetooth app, with range-status LEDs on the meter. The app supports calibration for the specific growing medium.Checked October 3, 2026
- Bluelab Pulse Multimedia EC/MC Meter: Its stainless-steel probes are 200 mm long; the active sensing section is the lower 50 mm, with one tip emitting measurement frequencies and the other detecting them.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
Bluelab Pulse Multimedia EC/MC Meter source details · ProductMETPULSE: moisture/EC/temp Bluetoothapp;LEDin/outofrange,8in200mmstainlessprobes;1AAalkaline,minpot2litres, excludes largevoidPerlite/permanentlydistortedRockwool.
Its stainless-steel probes are 200 mm long; the active sensing section is the lower 50 mm, with one tip emitting measurement frequencies and the other detecting them.Bluelab Pulse Multimedia EC/MC Meter tips details · Maker identifies active2in50mm tips: one emits frequencies other detects; sensedvolume depends on medium.
Its stainless-steel probes are 200 mm long; the active sensing section is the lower 50 mm, with one tip emitting measurement frequencies and the other detecting them.Checked October 3, 2026
- Bluelab Pulse Multimedia EC/MC Meter: It uses one AA alkaline battery. Bluelab specifies a minimum 2-litre pot and excludes media with large voids such as perlite and permanently deformable media such as rockwool.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
Bluelab Pulse Multimedia EC/MC Meter source details · ProductMETPULSE: moisture/EC/temp Bluetoothapp;LEDin/outofrange,8in200mmstainlessprobes;1AAalkaline,minpot2litres, excludes largevoidPerlite/permanentlydistortedRockwool.
It uses one AA alkaline battery. Bluelab specifies a minimum 2-litre pot and excludes media with large voids such as perlite and permanently deformable media such as rockwool.Checked October 3, 2026
- TFA Dostmann Analogue Garden Combitester: TFA describes an analogue display combining soil moisture, light and pH functions.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
TFA Dostmann Analogue Garden Combitester source details · Actual makerbody: item48.1000 analogplasticgreen case, humidity/moisture light pH, no batteries;dimensions52x38x300mm63g. ManualPDFscanned did notextract successfully; not claimed read.
TFA describes an analogue display combining soil moisture, light and pH functions.Checked October 3, 2026
- TFA Dostmann Analogue Garden Combitester: The plastic tester is listed at 52 × 38 × 300 mm overall and 63 g; those dimensions do not establish usable insertion depth.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
TFA Dostmann Analogue Garden Combitester source details · Actual makerbody: item48.1000 analogplasticgreen case, humidity/moisture light pH, no batteries;dimensions52x38x300mm63g. ManualPDFscanned did notextract successfully; not claimed read.
The plastic tester is listed at 52 × 38 × 300 mm overall and 63 g; those dimensions do not establish usable insertion depth.Checked October 3, 2026
- TFA Dostmann Analogue Garden Combitester: The maker says no batteries are needed and lists the tester and instructions as the supplied contents.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
TFA Dostmann Analogue Garden Combitester source details · Actual makerbody: item48.1000 analogplasticgreen case, humidity/moisture light pH, no batteries;dimensions52x38x300mm63g. ManualPDFscanned did notextract successfully; not claimed read.
The maker says no batteries are needed and lists the tester and instructions as the supplied contents.Checked October 3, 2026
- Ecowitt WH51 Soil Moisture Sensor: WH51 has no local display. A compatible gateway such as GW1100 or GW2000, sold separately, sends its moisture readings to WSView Plus; low/high AD values can be manually calibrated.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
Ecowitt WH51 Soil Moisture Sensor source details · Currentshop actualbody: NA915MHz singleWH51; no display, gatewayGW1100/GW2000 separate toWSViewplus;0/100ADcustomcalibration,1AAnot included; no force/twistrockhardsubstrate. Current16sensor support intentionally not claimed from old8manual.
WH51 has no local display. A compatible gateway such as GW1100 or GW2000, sold separately, sends its moisture readings to WSView Plus; low/high AD values can be manually calibrated.Checked October 3, 2026
- Ecowitt WH51 Soil Moisture Sensor: This pick is the North American 915 MHz sensor. The maker warns against forcing or twisting its probe through hard soil, gravel or roots.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
Ecowitt WH51 Soil Moisture Sensor source details · Currentshop actualbody: NA915MHz singleWH51; no display, gatewayGW1100/GW2000 separate toWSViewplus;0/100ADcustomcalibration,1AAnot included; no force/twistrockhardsubstrate. Current16sensor support intentionally not claimed from old8manual.
This pick is the North American 915 MHz sensor. The maker warns against forcing or twisting its probe through hard soil, gravel or roots.Checked October 3, 2026
- Ecowitt WH51 Soil Moisture Sensor: One AA battery is required and not included. Match the sensor’s radio frequency to the compatible gateway or console; the sensor alone does not provide the described app setup.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
Ecowitt WH51 Soil Moisture Sensor source details · Currentshop actualbody: NA915MHz singleWH51; no display, gatewayGW1100/GW2000 separate toWSViewplus;0/100ADcustomcalibration,1AAnot included; no force/twistrockhardsubstrate. Current16sensor support intentionally not claimed from old8manual.
One AA battery is required and not included. Match the sensor’s radio frequency to the compatible gateway or console; the sensor alone does not provide the described app setup.Checked October 3, 2026
- Netro Whisperer 2nd Gen: Whisperer 2nd Gen monitors moisture, temperature and light through the Netro app and cloud service; the maker says it can collect data without a Sprite sprinkler controller.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
Netro Whisperer 2nd Gen source details · CurrentactualpageSKU37: Whisperer2ndGen, moisture/temp/light,app standalone noSprite required;solar+USBcharge800mAhbatteryincluded2.4GHzWiFi cloudremotehistory. Overalldimensions page differmanualindex; numericdimensionsomitted pendingconfirmation.
Whisperer 2nd Gen monitors moisture, temperature and light through the Netro app and cloud service; the maker says it can collect data without a Sprite sprinkler controller.Checked October 3, 2026
- Netro Whisperer 2nd Gen: This generation includes a solar panel and USB charging port, with an included 800 mAh rechargeable battery.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
Netro Whisperer 2nd Gen source details · CurrentactualpageSKU37: Whisperer2ndGen, moisture/temp/light,app standalone noSprite required;solar+USBcharge800mAhbatteryincluded2.4GHzWiFi cloudremotehistory. Overalldimensions page differmanualindex; numericdimensionsomitted pendingconfirmation.
This generation includes a solar panel and USB charging port, with an included 800 mAh rechargeable battery.Checked October 3, 2026
- Netro Whisperer 2nd Gen: It requires 2.4 GHz Wi-Fi for internet uploads and remote app access; a 5 GHz-only network does not meet the stated Wi-Fi specification.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
Netro Whisperer 2nd Gen source details · CurrentactualpageSKU37: Whisperer2ndGen, moisture/temp/light,app standalone noSprite required;solar+USBcharge800mAhbatteryincluded2.4GHzWiFi cloudremotehistory. Overalldimensions page differmanualindex; numericdimensionsomitted pendingconfirmation.
It requires 2.4 GHz Wi-Fi for internet uploads and remote app access; a 5 GHz-only network does not meet the stated Wi-Fi specification.Checked October 3, 2026
- AC Infinity AI Soil Sensor: AC-SLS3 sends moisture and saturation readings to AC Infinity AI controllers and the associated app; it is an accessory for that controller system.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
AC Infinity AI Soil Sensor source details · ActualproductAC-SLS3fiberglass moisture/saturation sensor144inchcord detachabledepthmarkedstem;spec1.41x2.83x0.55sensor dimensionsnotdepth;AIcontrollernative1sensor. Copyconflict splitterforthcoming vs use splitter: availabilityunconfirmed, noexpandclaim.
AC-SLS3 sends moisture and saturation readings to AC Infinity AI controllers and the associated app; it is an accessory for that controller system.Checked October 3, 2026
- AC Infinity AI Soil Sensor: It has a detachable stem for placement and a 144-inch cord. The listed sensor dimensions are 1.41 × 2.83 × 0.55 inches, not a usable insertion-depth specification.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
AC Infinity AI Soil Sensor source details · ActualproductAC-SLS3fiberglass moisture/saturation sensor144inchcord detachabledepthmarkedstem;spec1.41x2.83x0.55sensor dimensionsnotdepth;AIcontrollernative1sensor. Copyconflict splitterforthcoming vs use splitter: availabilityunconfirmed, noexpandclaim.
It has a detachable stem for placement and a 144-inch cord. The listed sensor dimensions are 1.41 × 2.83 × 0.55 inches, not a usable insertion-depth specification.Checked October 3, 2026
- AC Infinity AI Soil Sensor: The maker states one soil sensor per AI controller natively. Its page also references a splitter inconsistently, so confirm splitter availability and compatibility before planning more sensors.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
AC Infinity AI Soil Sensor source details · ActualproductAC-SLS3fiberglass moisture/saturation sensor144inchcord detachabledepthmarkedstem;spec1.41x2.83x0.55sensor dimensionsnotdepth;AIcontrollernative1sensor. Copyconflict splitterforthcoming vs use splitter: availabilityunconfirmed, noexpandclaim.
The maker states one soil sensor per AI controller natively. Its page also references a splitter inconsistently, so confirm splitter availability and compatibility before planning more sensors.Checked October 3, 2026
- GARDENA Soil Moisture Sensor 1867: GARDENA describes electrothermal sensing: a felt-covered metal tip is heated and moisture is inferred from cooling time. Readings are shown on a compatible Water Control.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
GARDENA Soil Moisture Sensor 1867 source details · NorthAmericanmaker page1867: electrothermalfeltmetal tipcoolingtime;waterdropdisplayoncontroller5mcable2AAexcluded, compactsmallpots; notallcontrollersautomaticcompatible.
GARDENA describes electrothermal sensing: a felt-covered metal tip is heated and moisture is inferred from cooling time. Readings are shown on a compatible Water Control.Checked October 3, 2026
- GARDENA Soil Moisture Sensor 1867: The maker lists a 5-metre cable and suitability for plant pots. Its manual calls for a hole at least 12 cm deep with full soil contact around the tip.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
GARDENA Soil Moisture Sensor 1867 source details · NorthAmericanmaker page1867: electrothermalfeltmetal tipcoolingtime;waterdropdisplayoncontroller5mcable2AAexcluded, compactsmallpots; notallcontrollersautomaticcompatible.
The maker lists a 5-metre cable and suitability for plant pots. Its manual calls for a hole at least 12 cm deep with full soil contact around the tip.GARDENA Soil Moisture Sensor 1867 manual details · Maker2021English1867PDFP13twoAAalkaline;P14at least12cmholefulltipcontactairfree;P15adjustableswitchingpoint onlycompatiblecontrolfirmwares, olderpresets;P17technical5mcable.
The maker lists a 5-metre cable and suitability for plant pots. Its manual calls for a hole at least 12 cm deep with full soil contact around the tip.Checked October 3, 2026
- GARDENA Soil Moisture Sensor 1867: It requires two AA alkaline batteries, not included. Adjustable switching points depend on the connected Water Control model and firmware; some older controls use a fixed setting.
Exact named physical configuration, maker-described display, dimensions, installation or compatibility; no independently measured accuracy, watering outcome, battery runtime or durability. Overall dimensions are not usable insertion depth.
GARDENA Soil Moisture Sensor 1867 manual details · Maker2021English1867PDFP13twoAAalkaline;P14at least12cmholefulltipcontactairfree;P15adjustableswitchingpoint onlycompatiblecontrolfirmwares, olderpresets;P17technical5mcable.
It requires two AA alkaline batteries, not included. Adjustable switching points depend on the connected Water Control model and firmware; some older controls use a fixed setting.GARDENA Soil Moisture Sensor 1867 source details · NorthAmericanmaker page1867: electrothermalfeltmetal tipcoolingtime;waterdropdisplayoncontroller5mcable2AAexcluded, compactsmallpots; notallcontrollersautomaticcompatible.
It requires two AA alkaline batteries, not included. Adjustable switching points depend on the connected Water Control model and firmware; some older controls use a fixed setting.Checked October 3, 2026