This moisture sensor is very sensitive it can detect the humidity of the soil
When the soil is short of water module will output low simulation values, otherwise it will output high simulation values
With this sensor you can make a automatic watering device to prevent your plants from withered due to lack of water when you are not at home for a long time or have passed watering time
This sensors can let your plants grow more comfortably and make your garden become more intelligent
The surface have gone through plating processing to enhance the electrical conductivity and corrosion resistance
Easy to install
Specifications
Color : Red + Silver
Material : RF4
Power Supply : 3.3V or 5V
Working Current: Less than 20mA
Output Voltage: 0~2.3V (2.3V when sensor completely soaked in the water)