1.Signal-chip intelligent digital processing technology 2.Double-channel signal with A/D conversion processing 3.Complete airproof and weatherproof function 4.Automatic temperature compensation 5.Detect distance: 8m and 12 m optional 6.Pulse member: 1P and 2P optional 7.Alarm indicator light: ON and OFF optional 8.Day and night working mode can be set 9.Alarm delay time can be set 10.With special filter and the intensity of anti-white light can be up to 10000LUX www.karassnsecurity.com