Kidde i9040 Fire Sentry™ Battery Operated 4" Smoke Alarm 9V

2 sold in last 8 hours


customers are viewing this product

Kidde i9040

i9040 Product Description

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.


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.


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

About Kidde:

Kidde is one of the world’s largest manufacturers of fire safety products. Each day, we work to expand upon our legacy of innovation, providing advanced solutions to protect people and property from fire and related hazards.

Please email us with the products you need and the details of your job at
Kidde i9040 Fire Sentry™ Battery Operated 4
Kidde i9040 Fire Sentry™ Battery Operated 4" Smoke Alarm 9V
You have successfully subscribed!