ITEM NAME:Microwave Sensor Switch PIR Motion Light Switch 5.8GHz 360 Switch Degree F4N0 Description&Preview.This product uses a microwave sensor (high frequency output is less than 0.2lMw), so it is safe and performs better than infrared sensor. The microwave sensor is an active sensor, and the HF sensor emits high frequency electromagnetic waves (5.8 GHz) and receives their echoes.
