R123WB-1 Microwave sensor switch 2 wires Rated voltage:110V/220V Sensing distance:8M Angle ... sensor:120 Delay time: 60S R123WB-1 Microwave sensor switch 2 wires Parameters: Rated voltage:110V/220VLight Sensitivity:≤2-daylight ... places.Working principle:In low light places,and anybody move,switch turn on,about 60 seconds, and then automatic turn off ...