- Installation Height: 1.8 - 2.2M                                                       
- Built in 2pcs of "3V * AAA" battery, attention: it's non-chargeable battery
- Standby Current: <25uA
- Working Current: <15mA
- Detecting Range: 8-12Mts/90degree
- Wireless transmitter range: >80M (In the open air) 1
- Wireless Transmission: Frequency 433MHz RF Communication
- Detecting Angle: 110° wide angle