Loading ...

120V AC/DC Smoke/CO Combo Alarm


  • Locke Part #: P4721
  • Mfg. Part #: SC9120B
  • Manufacturer: BRK Brands

For pricing information and availability, login to your account with your customer number and home branch. Or contact your local branch.

  • Electrochemical Carbon Monoxide Sensor - the most accurate sensor available, Single button test/silence
  • 9V Alkaline Battery Backup
  • Latching alarm indicator remembers which unit initiated an alarm
  • Two silence features - can silence the low-battery chirp for up to eight hours or temporarily silence an un-wanted nuisance alarm, End of Life Signal provides audible notification alarms needs to be replaced
  • Intelligent Sensing Technology helps reduce the number of nuisance alarms, Perfect Mount - allows for easy alignment Dust Cover, Easy Installation/Main-tenance 7-Years Limited Warranty