Keyestudio New Type Soil Humidity Sensor Module For Arduino

This capacitive soil humidity sensor is designed to measure soil moisture levels accurately without the typical wear and tear of resistive alternatives. It is an ideal choice for South African students, educators, and makers building automated irrigation systems or smart agriculture projects.

Capacitive sensing technology

Unlike traditional resistive sensors, this module uses capacitive sensing to detect soil humidity levels. By measuring changes in capacitance, it provides reliable moisture readings without exposing bare metal to the soil.

Corrosion resistant design

Because the circuit is not exposed at the detected end, this sensor avoids the common corrosion issues that plague resistive sensors. This design choice significantly extends the life expectancy of the module in damp soil.

Improved waterproof performance

The module features a segmented wire connection and protective casing pipe to enhance its waterproof capabilities. This ensures the sensitive signal end remains protected from moisture ingress.

Wide controller compatibility

An onboard chip supports a wide working voltage range of 3.3V to 5.5V, making it compatible with Arduino, ESP32, and micro:bit. When using this sensor with a mini PC, an external ADC module is required to convert the analogue output.

Analogue signal output

When the probe is inserted into the soil, the signal end outputs an analogue value corresponding to the moisture level. This allows for precise calibration and real-time monitoring of soil conditions.