Sensor Type: Capacitive moisture sensor – detects soil moisture levels without corrosion-prone exposed electrodes.

Operating Voltage: 3.3V to 5V DC – fully compatible with Arduino, ESP32, Raspberry Pi, and similar platforms.

Output:

Analog Output (AO): Varies based on moisture content (lower voltage = wetter soil).

Some versions include Digital Output (DO) with adjustable threshold (via potentiometer).

Corrosion Resistant: Unlike resistive sensors, this module uses capacitive sensing – making it more durable and long-lasting.

Onboard Components:

Power indicator LED

Optional comparator IC (on some models) for digital output

Low Power Consumption: Ideal for battery-powered and long-term monitoring systems.

Compact & Lightweight: Slim PCB design makes it easy to insert into soil or plant pots.