1,PIR universal remote control switch 2,learning home appliance remote signal 3,good for air conditioner etc. 4,energy ... On/Off signals. When the room is unoccupied for 15 to 30 minutes (to be set as ... turn of home appliances such as air conditioners, TVs, fans, etc. PIR sensing angle 110 degrees and working distance ... *23mmWeight120g Portable PIR Motion Sensor Remote Control Switch for Air Conditioner