Capacitive measurement
The dual-sided sensing region responds to surrounding soil without exposed resistive probe traces.
$12.99
SOIL-SENSING COMPONENT3.3V ANALOG
A 3.3V analog capacitive soil-moisture sensor with an 85 cm Micro-USB lead for Arduino and other 3.3V-controller projects.
- 3.3V DC input only
- 0–3V analog output
- Dual-sided capacitive sensing area
- Sensor, adapter and four-pin header included
Do not apply 5V. Calibrate the sensor for the actual soil, pot and installation used in your project.
SOIL-SENSING COMPONENT
Analog soil-moisture sensing for 3.3V projects
This capacitive module produces an analog output for a compatible microcontroller or ADC. Its response depends on the soil and installation, so the project must establish dry and wet reference values.
3.3Vinput voltage
0–3Vanalog output
85 cmMicro-USB lead
32 glisted weight
KEY DETAILS
What this item is designed to do
Analog integration
Read the 0–3V signal with a suitable analog input; a Raspberry Pi requires a separate ADC.
Project calibration
Record readings in the actual soil and placement, then choose thresholds based on observed behavior.
What is included
- 1 PlantMate capacitive soil-moisture sensor
- 1 Micro-USB adapter
- 1 four-pin header
Check before ordering
- 3.3V input only; do not apply 5V
- Controller must accept a 0–3V analog signal
- Raspberry Pi boards require an external ADC
- Keep connectors and exposed electronics dry
SPECIFICATIONS
Product details at a glance
Supply3.3V DC
Output0–3V analog
ConnectionMicro-USB
Cable length85 cm
Sensing styleDual-sided capacitive area
Weight32 g
UPC / EAN766133580689
Calibration and voltage note
Soil type, salinity, pot shape, sensor depth and watering placement can all change the reading. Use only a 3.3V supply and calibrate the assembled project before relying on thresholds.
SHOP & SUPPORT
Need help choosing a part?
Browse DIY sensor parts or contact PlantMate if you need help matching the analog output to a controller.
1 review for PlantMate 3.3V Capacitive Soil-Moisture Sensor
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Original price was: $69.99.$49.99Current price is: $49.99.
Michel –
Building 2 raised bed garden with Plantmate moisture sensors. Among all sensors tested, Plantmate, you guys got it.
One thing, do not apply 5v on sensors, as I blew one. Other than that, great product.