This is Microwave Sensors
HF System:5.8GHz CW Radar ISM Band
Detection Angle: 360°
Detection Range: 2m,5m,8m,10m
Time Setting: 10S-1,8,15,30Min
Power Source: 110-130V. 220-240V/AC
Power Frequency: 50/60Hz
2.Light and small
3.Auto switching on when detecting people coming
4.Super sensitivity within 3 meters distance
5.Wireless,easy to install,can be used in bedroom,washing room,back door,porch,front entrance,or outside of a barn/garge.
6.Extremely low energy consumption.