Automatic 90db Power Cut Failure Outage Alarm Warning Siren with LED Indicator

Functioning: On pressing red button the green light will switch on which means electricity is live and circuit is on. Keep battery button in on position. When electricity supply goes off, the green LED light switches off and red Led switches ON and an audible alarm of 110db also goes on.
PLS NOTE For its longer life, Battery will be consumable automatically in circuit only when power goes off.. After getting alarm alert, you can switch off the battery through on/off switch on the battery cover. IF ALARM SOUND IS FEEBLE/LESS, PLS REPLACE THE BATTERY BECAUSE IT HAS DRAINED
1. Plug-in the adapter of the device in any power socket and ensure that device is getting electric supply from the socket.
2. Put a 9v battery in the battery compartment of the device.
3. Now, if electricity supply is present, the device will not ring an alarm. But, if the power supply goes away, the alarm should sound from the device. You can test/simulate this by removing the adapter of the device from the socket(to simulate power supply cut off).Product includes one device and one 9v battery.
Click here to see Device functioning demo video