1、This is a rain and plant leaf humidity sensor, which can be used for various weather monitoring 2、The nickel plating on the exterior of the raindrop controller module has better oxidation resistance, conductivity and longer service life 3、The high‑power relay module of the raindrop detection sensor can directly control loads such as motors 4、Sensitivity can be adjusted by potentiometer to control the relay at different humidity levels 5、Designed with indicator lights, so can clearly display the power and switch status Item Type: Raindrops Detection Sensor Module Material: Resin Product Usage: Robot Kit Raindrops Rain Plant Leaf Humidity Sensor Used to Monitor Various Weather Conditions With a Relay to Directly Output Control the Start and Stop of the Motor Function Introduction: Connect the Power Supply the Power Indicator Light is on, No Water Droplets on the Sensor Board the Relay is Closed and the Related Equipment is Started Module Power Supply: DC12V Quiescent Current: 5-12mA 1 x Raindrop Sensor Board 1 x Control Panel 2 x Jump Wire