The siren alarms when the power supply is cut off until power is restored
The warning can be manually silenced by the on / off switch
Drawer type cell cover design, you can easily change the battery
High voltage resistant design, works well even when supply voltage exceeds standard
LED indicator shows off / fault alarm and power status

Plug Type:US Plug,it applies to Canada, India,Mexico, Taiwan, Thailand, the United States, the Philippines and so on.
Material:ABS
colour:white

Package Contents:
2 * Alarm