1.Wireless emitting distance: open area: 300m
2.Emitting frequency: 433MHz
3.Programme code: 1527
4.Detecting range: 8m detecting angle: 115°
5.Aorking voltage: 3V DC 3 AAA alkaline batteries can connect the DC power supply
6.Digital circuits, adopt to microprocessors
7.Two-way digital temperature compensation, super anti-false alarm
8.The SMT process manufacturing, resistance to the RFI, EMI interference
9.the flame-retardant ABS housing, with the detector bracket