DFRobot Gravity Analog Soil Moisture Sensor - 3.3V/5V Compatible
The DFRobot Gravity Analog Soil Moisture Sensor is a corrosion-resistant probe designed for Arduino, Raspberry Pi, and other 3.3V/5V microcontroller platforms. It provides a simple 0-4.2V analog output proportional to soil water content, enabling easy integration into automated gardening and agricultural monitoring systems.
Features
- Analog output (0-4.2V) directly indicates soil moisture level.
- Corrosion-resistant ENIG (Immersion Gold) plating on sensing probes.
- Wide operating voltage: compatible with 3.3V and 5V logic systems.
- Low power consumption, drawing only 35mA during operation.
- Plug-and-play connectivity via DFRobot Gravity 3-pin interface cable.
Out of stock
This sensor operates on a resistive sensing principle. Its two exposed probes pass a current through the soil, and the module measures the resulting resistance, which correlates inversely with moisture content. Wetter soil offers lower electrical resistance, producing a higher output voltage, while dry soil results in higher resistance and a lower voltage signal.
The sensor is constructed with an Electroless Nickel Immersion Gold (ENIG) finish on the probe electrodes. This surface treatment provides excellent oxidation resistance and long-term stability in moist environments, significantly outperforming standard platings. The module includes a pre-wired Gravity 3-pin cable for immediate connection to compatible expansion shields, simplifying integration with Arduino, ESP32, Raspberry Pi, and other popular development boards.
Additional Information
| Weight | 0.015 kg |
|---|---|
| Dimensions | 6 × 2 cm |
