Automatic Power Cut Failure Alerter LED Indicator Smart 120db Outage Alarm Warning Siren, Needs 9V Battery (Not Included)

Key features

• LED indicator shows power out / failure alarm and power condition.
• Connect the alarm to the AC power supply and turn on the power switch to enter the working state. The siren alarms when the power supply is cut off until restore power. The warning could be manual muted by on/off switch.
• High voltage resistant design, works fine even when power voltage exceeds standard.
• Drawer-type cell cover design, can change the battery easily.
• Widely used in industrial and mining enterprises, institutions, substations, telecommunications rooms, farms, etc.