Sensky BS009 12V 24V PIR Sensor LED motion sensor Switch Motion Timer Function Sign Control PIR Controller LED Strips Lighting Power supply voltage: DC12-24V Delay Time: 1-10 min(adjustable). Induction distance: 8M Infrared detection controller, adopt infrared detection way to control load switch The sensor switch activates ON when a body in motion enters the field of view with an ON time hold that is adjustable from 1 to 10 minutes after motion has ceased PIR (Passive Infrared, IR) sensor has an effective range of 16 feet and diminished sensing of a moving human body to 26 feet. The field of view of the PIR Dome Lens is 60 degrees nominal.