Features: 1) MCU processing 2) Pet immunity 3) White light filter 4) Auto temperature compensation, reducing false alarm 5) LED on / off optional 6) Alarm duration adjustable 7) Adopts SMT, high EMI / RFI immunity Technical specifications: 1) Operating voltage: DC 9 - 16V 2) Supplying current: ≤20mA, DC 12V 3) Working temperature: -10 - +50oC 4) Installation method: wall mounted 5) Installation height: about 2.2m 6) Detecting angle: 110o 7) Detecting distance: 12m 8) Pet immunity: