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Power Fail Siren

QC Supply Part #: 90980
Shipping: Standard
Availability: In stock

This alarm activates when the power fails.


This Power Fail Siren activates after 10 minutes of power failure or sooner if coming from a dry contact switch.


  • Indoor/outdoor 120dBA warble siren with red strobe light
  • Battery back-up siren will blare and flash the strobe light for a minimum of 3 hours on a full battery charge
  • Run time can be lengthened by activating smart battery mode (50/50 on/off) or adding a lead acid battery
  • The back-up siren alarm can send a signal to an external dialer to notify you of power failure after the 10 minute wait period

The unit uses 10 AA Ni-MH batteries (included) to activate the siren/strobe light. These batteries are maintained with an internal smart battery charge to maximize battery life at their fullest capacity while the unit is plugged into a 110 volt power source.

Installation: Installation is simple. You can install the battery box and siren/strobe indoors or outdoors. The only requirement is that the siren/strobe is connected less than 500 feet from the battery box. Often times the we see the siren/strobe mounted in a high location that is visible from multiple directions and the battery box is mounted inside of the office.


  • Power Consumption: 15 Watts
  • Siren Output: 120 dB
  • Dimensions: 8.25" H x 5" W x 3" D
  • Weight: 7 lbs.
Brand Controltech
Manufacturer Part Number SIREN-ALARM-BATTERY
Animal Cattle, Swine, Poultry & Gamebird

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