selectable pulse width; high interference immune; automatic temperature compensation; tamper switch; vertical adjustment sensitivity; preventing pet design; installation flexible and convenient; sensitivity adjustable. Power Supply: 8~16VDC Warm-up Time: 30S Sense Degree: 140? Sense Distance: 12m(Max) Work Temperature: -10~+40℃ Working Humidity: <93%RH Installation height: 1.5~3.5 m