A 12V powered PIR sensor with adjustable 'on' time and light level sensitivity. The PIR416 PIR detector is suitable for fitting inside walls, doors or ceilings, it only requires a 12mmØ hole. The sensor has adjustment for high and low light level and movement sensitivity. The PIR output can be adjust to stay switched 'on' between 5, 30 or 60 seconds or between 3, 5 or 8 minutes. These adjustments are made using the DIL switch fitted in the main module. A simple solution for occupancy detection and light switching.