TECHNICAL SPECIFICATION
Operating Voltage: 1*3.6V 1/2AA li battery
Supply Current: alarm≤30mA ; standby≤8¡ì¨¨A
Working Temperature ??-10?? to +50?? 
Installation Method: ceiling mounted
Installation Height: 2.5-6m
Detecting Angle: 360° 
Detecting Range: diameter:8m (installation height:3.6m)
Alarm Output: radio output
Anti Tamper Switch: Normal Close
Battery:3-5y
Emission distance:≥100m
Emission frequency:315MHZ or 433MHZ
Size ??125*43.5mm