Ceiling mounted wireless PIR detector

It is suitable for installation of living room, aisle etc. with ceiling mounted.
Functions and Specification:
1.Digital processing and dual PIR technology for high sensitivity.
2.Anti interference of white light, Electromagnetic etc.
3.Auto temperature compensation for high reliability.
4.Low power alert and alarm report.
4.Power supply:3.6V(1pc ER14250 Lithium battery)
5.Detection angle:360°
6.Detection distance:6m*6m
7.Transmit frequency:433MHz
8.Transmit distance:400m (open area)
9.Dimension:Φ125*50mm