Capacitive Soil Moisture Sensor Wide Voltage Anti-corrosion for M4A3

New soil moisture sensor! This capacitive soil moisture sensor is different from most resistive sensors on the market and uses the principle of capacitive sensing to detect soil moisture. It avoids the problem that the resistive sensor is easily corroded and greatly extends its working life. The sensor has a built-in voltage regulator chip and supports a 3.3 wide voltage working environment which means it can work normally even on a 3.3V Arduino main control board. Mini PCs such as for Raspberry Pi only need an external ADC (analog signal to digital signal) conversion module to work. With an external screen and a motherboard you can talk to your plants! See if your beloved is thirsty and need more water to moisturize it. specification: Working voltage: 3.3 VDC Output voltage: 0 ~ 3.0 VDC Interface: PH2.54-3P Size: 98 x 23mm (LxW) Package Contents: 1 * Module Only the above package content other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.