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Kidde Fire Sentry Battery Operated Smoke Alarm Fire Detector


Secure your home with this basic, essential smoke alarm from Kidde. Battery is included with this fire alarm.


Kidde Fire Sentry Battery Operated Smoke Alarm Fire Detector

The Fire Sentry Smoke Alarm is powered by one 9V battery (included), which means it is still on even when the power to your home is off.  I

This smoke alarm Basic compact design smoke alarm provides you and your family an early warning signal against the dangers of fire and smoke

  • Discreet Design – Four (4) inch diameter
  • Part number 0914 Alternative Option: 0914E with 5″ mounting plate for covering paint rings when replacing 5″ alarms)

The Fire Sentry i9040 smoke alarm is a battery operated smoke alarm that utilizes ionization sensing technology. The four (4) inch unit is smaller in diameter giving it discreet design with the same quality you would expect in a Kidde manufactured product. The i9040 is powered by a 9V battery, providing continuous protection, even during power outages. This easy to install unit includes a test button to verify the detection electronics are working as intended.


The Fire Sentry i9040 battery operated, single station smoke alarm provides an early warning signal to you and your family in the event of a fire hazard. The i9040 operates on a 9V battery power source that provided continuous protection even during a power outage, Installation is easy, no wiring required. This unit is UL Listed and includes a 3 year limited warranty.

This alarm uses ionization sensing technology. Ionization sensing alarms may detect invisible fire particles (associated with flaming fires) sooner than photoelectric alarms. Photoelectric sensing alarms may detect visible particles (associated with smoldering fires) sooner than ionization alarms. Kidde strongly recommends that both ionization and photoelectric smoke alarms be installed to help insure maximum detection of the various types of fire that can occur within the home.

Part Number(Ordering Number):0914


  • 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.

Technical Specifications:

Model Number: i9040
Power Source: 9V Battery (included)
Audio Alarm: 85dB at 10ft
Temperature Range: 40˚F to 100˚F (4°C to 38°C)
Humidity Range: up to 85% relative humidity (RH)
Sensor: Ionization
Size: 4” in diameter x 1.45” depth
Weight: .5lbs
Interconnects: No
Warranty: 3 year limited

Additional information

Weight 1 lbs