Feature This is a simple moisture sensor for measuring moisture of the soil when the soil water the analog sensor output value will decrease and vice versa will increase Using this sensor make an automatic watering system when you are not at home or over a long period of time watering it can sense whether your plant has been thirsty Prevent plant wilts know that this is caused by lack of water With controller to make your plants more comfortable more intelligent garden Description Supply voltage 3 3V or 5VOperating current less than 20mAOutput voltage 0 2 3V 2 3V is completely immersed in water voltage value 5V power supply the greater the humidity the greater the output voltage Sensor type Analog OutputFeatures Sensor surface made of metal processing can extend its service life Insert it into the soil and then use the AD converter to read it Packing included 5 x Soil moisture sensor