Ruth's sister power-cut alarm 120dB LED 55cm cable

Power-cut alarm with 120 dB siren

This compact alarm plugs into a 220 V AC supply and sounds a 120 dB siren the moment mains power is lost. A built-in LED indicator shows the live supply status at a glance. The unit is powered by a 9 V battery (not included) so the alert continues during the outage. An on/off switch allows the siren to be silenced manually once the alarm has been acknowledged.

55 cm lead and drawer battery cover

The 55 cm cable gives flexibility to position the audible unit where it will be heard while the mains plug reaches the socket. A sliding drawer cover provides quick access to the 9 V cell without tools, simplifying routine battery changes. No additional wiring or mounting hardware is required; the device simply plugs in and is ready to monitor the circuit.

Sustained alarm until power returns

Once triggered, the siren continues sounding until mains voltage is restored or the switch is turned off, ensuring the alert persists through extended outages. The high-voltage tolerant design withstands grid fluctuations above nominal level without false trips or damage. Battery backup maintains operation for the full duration of the power loss, limited only by the cell capacity.