The Soil Moisture Sensor Module reads water content in soil by measuring electrical conductivity between two probe electrodes inserted into the ground. Higher moisture lowers resistance, and the module converts that into a readable signal. This moisture detection sensor runs on 3.3V to 5V, which means it connects directly to Arduino, NodeMCU, or ESP32 without any additional circuitry.
The soil humidity sensor PCB is just 3cm x 1.5cm, and the probe extends to 6cm x 3cm. One non-obvious detail is that the probe electrodes corrode over time in wet soil, so leaving the sensor powered continuously between readings reduces its lifespan. The 20cm cable is enough for most pot setups but may need an extension for in-ground field use.
Students, Makers, and garden builders use this soil moisture detector regularly for plant watering projects. StemVolt provides this sensor with trusted quality, ensuring reliable performance and easy usability.
Related Products:
Features:
- Power supply range of 3.3V to 5V allows direct connection to most microcontroller boards
- PCB dimension of 3cm x 1.5cm makes mounting inside compact project boxes easy
- Analog output changes with soil resistance allowing analogRead on any ADC-capable board
Technical specifications:
| Specification | Details |
|---|---|
| Sensor Type | Soil Moisture Sensor |
| Operating Voltage (VDC) | 3.3V ~ 5V |
| PCB Dimension | 3cm x 1.5cm |
| Soil Probe Dimension | 6cm x 3cm |
| Cable Length (CM) | 20 |
Applications:
- School science project reads soil humidity data to compare moisture retention across different soil types
- Greenhouse monitoring system uses soil sensor to log moisture levels across multiple grow trays
- Vertical farm automation setup uses this soil sensor module to water individual plant columns at set thresholds
Package includes:
- 1 x Soil Moisture Sensor Module
Reviews
Clear filtersThere are no reviews yet.