Focus Wireless Siren with sound and flash light

It is used with focus alarm panel or remote controller for sound and light alarm. 
Functions and Specification:
1.It can work with alarm panel and controlled by panel. It can work with wireless detectors or remote without panel.
2.It can code maximum 48 wireless equipments.
3.It is powered with adaptor and DC12V 500mA rechargeable battery
4.It is tamper-resistant to against moving or open. 
5.It fit for to be installed in porch, window at home or store. 
6.It can realize alarm and disalarm answer and react.
7.Power voltage:DC15V

8.Alarm Sound:110dB
9.Standby current:8mA
10.Alarm current:<=500mA
11.Frequency:433MHz
12.Receiving distance:100m