Kidde Photoelectric Battery Operated 4" Smoke Alarm P9040

  • Battery Operated (9V Battery Included) – Easy installation and provides continuous protection even during power outages.
  • Test Button – Tests unit’s electronic circuitry, horn and battery function.
  • Low Battery Indicator – Low battery warning chirp alerts user to change battery.
  • Discreet Design – Four (4) inch diameter.
  • Hush® Feature – Temporarily silences nuisance alarms
  • Power Source


  • Sensor

  • Safety Features