Main feature: Fireproof abs housing Led on/off optional Automatic temperature compensation Smt adopted, anti-rfi & anti-emi Pulse count optional Alarm output n.C./ n.O. Optional Technology parameter: Operating voltage: dc 9-16v Consumption current: less than 18ma(dc12v) Operating temp.: -10 to +50 degrees Installation mode: wall mounted Installation height: about 2.2m Detecting distance: 12m Detecting angle: 110 degrees Alarm output: n.O./ n.C. Optional Anti-dismantle switch: n.C. Dimension: 107*59*39.5mm Colour box or carton packing