Usage:Alarm Item:Outdoor Waterproof Dual IR Beam Motion Sensor ABT 100 Usage:Perimeter Security Working voltage:DC 10.8 - 18V Working current:25mA max Detection Distance:20 40 60 80 100m Optional Alarm time:2s Response time:50-700ms Frequency:8 wave bands Alarm output:NO & NC; 1A 120VAC 2A 24VDC Size:156mm*65mm*68mm