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Description
FireX Hardwire Smoke Detector with 9-Volt Battery BackupThe Kidde i12040 Hardwire interconnectable Ionization Smoke Alarm with Battery Backup can act as a stand alone unit or can be integrated into an existing electrical system. This unit sounds an early warning to alert you and your family of the presence of visible fire particles detected by the alarm's ionization sensor. Powered by 120 Volt AC, this alarm protects you, your home and the people you hold dear even during power outages, thanks to a 9 Volt
The Kidde i12040 Hardwire interconnectable Ionization Smoke Alarm with Battery Backup can act as a stand-alone unit or can be integrated into an existing electrical system. This unit sounds an early warning to alert you and your family of the presence of visible fire particles detected by the alarm's ionization sensor. Powered by 120-Volt AC, this alarm protects you, your home and the people you hold dear even during power outages, thanks to a 9-Volt battery backup. A power harness facilitates an easy installation and a simple push of a button activates this alarm's test and hush features.- Compatible with Kidde, FireX, Code One, and Sentinel products
- 9-Volt battery backup provides protection during power outages
- The Kidde i12040 interconnectable Ionization Smoke Detector Hardwired with Battery Backup can act as a stand-alone unit or can be integrated into an existing electrical system. This unit sounds an early warning to alert you and your family of the presence of visible fire particles detected by the alarm's photoelectric sensor. Powered by 120-Volt AC, this alarm protects you, your home and the people you hold dear even during power outages, thanks to a 9-Volt battery backup. A power harness facilitates an easy installation and a simple push of a button activates this alarm's test and hush features. Shop all here.
- Kidde offers a full range of 120V AC wire-in life safety products with interconnect capability to provide the most immediate and complete system available. When any one interconnected alarm is triggered, all interconnected alarms within the home sound an immediate warning.
- Smoke detector utilizes an ionization sensor to detect fire hazards and sounds an 85 db alarm when a hazard is detected
- Previous Model #: 21006376
- UL/CSFM ref. i12040
- *Check with your state and local fire and Building/Safety codes for specific information regarding smoke & Carbon Monoxide Alarms.
Features
| Item Weight | 0.98 |
| Voltage (volts) | 120 |
| Connector/Contact Type | 2-Wire |
| Fixed or portable | Fixed |
| Alarm/Detector Features | Battery Back-Up,Hush Feature,Interconnected |
| Alarm Type | Smoke |
| Commercial/Residential | Residential |
| Pack Size | 1 |
| Power Source | Hardwired |
| Included | Batteries |
| Returnable | 180-Day |
| Alarm Sensor Type | Ionization |
| Product Height (in.) | 5.6 |
| Product Depth (in.) | 1.55 |
| Product Width (in.) | 5.6 |
| 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 21 reviews
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Product Reviews
★★★★★ 4
Easy to use.
Size: 2+6+1+12 Pack
They work very well.
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Reviewed in the United States on March 8, 2026
★★★★★ 5
Not so good
Size: 2+6+1+12 Pack
These placement filters are not as good as the original. They seem to hold onto the debris & don't release it into the reservoir. I clean the filter & reservoir after each use & always find the filter full & the reservoir nearly empty.
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Reviewed in the United States on December 24, 2025
★★★★★ 5
Well priced
Size: 1+6+6 Pack
Very economically priced set of replacement parts for Eufy RoboVac 11S Max
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 25, 2026
★★★★★ 5
Perfect fit
Size: 2+6+1+12 Pack
This is the second time I have ordered replacement parts for my Eufy robot vac. They fit perfectly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 3, 2025
★★★★★ 5
Good value replacement parts package
Size: 2+6+1+12 Pack
Purchasing the Replacement Parts for my Eufy RoboVac 11S Max has proven to be an excellent value for the cost. The kit, which includes brushes and a filter, has significantly extended the life and maintained the efficiency of my vacuum. It's reassuring to know that I can keep my RoboVac performing at its best without the need for costly professional services or a premature replacement of the unit itself. The ease of replacing the parts meant that my vacuum was back to its optimal cleaning performance in no time. For anyone looking to maintain their Eufy RoboVac 11S Max in top condition, these replacement parts are a wise and economical choice.
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Reviewed in the United States on February 28, 2024