Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Battery Operated Smoke Detector with Ionization SensorThe Kidde i9040 Battery Operated Ionization Smoke Alarm is a single station alarm with an early warning signal. This alarm utilizes ionization sensing technology to activate in the event of a smoke or fire incident and its compact, 4 in. design lends it a discreet profile in your home or business. Powered by a 9 Volt battery, this smoke alarm will protect you, your family and home during a power outage. When the battery begins to lose power, a low
The Kidde i9040 Battery-Operated Ionization Smoke Alarm is a single-station alarm with an early warning signal. This alarm utilizes ionization sensing technology to activate in the event of a smoke or fire incident and its compact, 4 in. design lends it a discreet profile in your home or business. Powered by a 9-Volt battery, this smoke alarm will protect you, your family and home during a power outage. When the battery begins to lose power, a low-battery alert will begin to chirp to notify you it is time to replace.- Utilizes ionization sensor
- Provides an early warning signal in the event of a smoke
- Compact 4 in. design
- Low-battery indicator chirps to alert you to change the battery
- Test button tests the unit's electronic circuitry, horn and battery function
- Battery power means protection during power outages
- 9-Volt battery included use Kidde power supply (205976052)
- Compatible with Kidde, FireX, Code One, and Sentinel products
- *Check with your state and local fire and Building/Safety codes for specific information regarding smoke & Carbon Monoxide Alarms.
- Smoke detector utilizes an ionization sensor to detect fire hazards and sounds an 85 db alarm when a hazard is detected
- UL/CSFM Ref. Kidde Part I9040
Features
| Item Weight | 0.5 |
| Voltage (volts) | 9 |
| Connector/Contact Type | None |
| Fixed or portable | Fixed |
| Pack Size | 1 |
| Alarm Type | Smoke |
| Commercial/Residential | Residential |
| Battery Type Required | 9-volt |
| Included | Batteries |
| Returnable | 180-Day |
| Power Source | Battery |
| Alarm/Detector Features | Hush Feature |
| Alarm Sensor Type | Ionization |
| Product Width (in.) | 4.0625 |
| Product Depth (in.) | 4 |
| Product Height (in.) | 1.5 |
| Certifications and Listings | UL Listed |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 982 reviews
Sort
Product Reviews
★★★★★ 5
Fit!
Perfect
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 20, 2026
★★★★★ 1
Stay away
Do not buy these, they will melt.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 9, 2025
★★★★★ 5
Fit very well
Yes
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 18, 2025
★★★★★ 4
Fit. With Modification.
I lost one of my housings on the freeway and had a hard time finding the style I had. Different than the standard, but not the Euro ones. Hard to find, at least for me. These were a bit closer to what mine looked like. I had to remove the rubber gasket around the housing to get it to fit (2003 330XI) but it worked like a charm.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 16, 2025
★★★★★ 3
Not a proper fit
Received as promised by the seller.
My cons on this item:
1) the socket holes does not make a tight fit with the light bulb sockets I have. Both issues for left and right. I had to double the o-ring on my light sockets to make it tight fit.
2) The rubbers around the casing was not properly glued in. The rubber sticks out by a few centimeters. Pics attached.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 29, 2025