Home security intrusion motion sensor burglar alarm system. The professional home security surveillance with video alarm sensor. 
Shipped from Manufacturer to biyer directly with new condition. 
Dual PIR 360°Detection intrusion sensor
Functions and Specification:
1.With energy accumulation logic processing and random dynamic Time division processing technology for hign sensitivity.
2.Low consumption power and built-in big capacity battery design.
3.Suitable for indoor usage and anti interference.
4.Detection angle:360°
5.Detection distance:6*6m (25℃)
6.Wireless transmit frequency:433MHz
7.Transmit distance:120-150m (ground distance)
8.Input voltage:3VDC (2pcs 5AA battery)
9.Installation height:1.8-2.5m (6-8feet)
10.Dimension:Φ110*40mm