Technical Specifications Electrical Voltage: 12-30 Volts DC or AC Current Consumption: 8 mA standby , 25 mA (Relay+LED), 44 mA maximum (Buzzer+Relay+LED) at 12/24 VDC Relay Output: 1A @ 30 VDC or VAC, two form "C" contacts Tamper Output: 50 mA @ 30 volts DC or AC Detection System Mounting Height: 2.3m - 4.6m (7.5 - 15 ) Detection Range: Up to 2.4m (8 ) Physical Dimensions (LxHxD): 177mm x 50mm x 45mm (7 x 2 x 1.8 ) Weight: 0.15Kg (0.3lb) Colour: White or Black Environmental RFI Immunity: 30 V/m from 10MHz to 2GHz Operating & Storage Temperature: -20°C to 60°C (-4°F to 140°F)