Rear and side entry knockouts, integral cable clamp and large mains terminals for 2 x 1.5mm conductors. Easy to wire from surface cables and enables loop-in/ loop-out for supply to other sensors.
Elongated fixing slots; simple to position and fix to surface.
Passive infra-red; ensures light is switched on when sensor detects movement of heat; therefore lighting is switched off when the area is vacated. There is less likelihood of false triggers compared to microwave which switches on any movement.
Integral sensor dust-shield to prevent false triggering.