March 27, 2026
10 Best Lifesaver Smoke Alarm 1275 Replacement of 2026
Last Updated - March 27, 2026
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Kidde
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Kidde AC Hardwired Interconnect Smoke Alarm with Hush I12040 (4-Units)
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Why We Love It
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Kidde
Kidde Smoke Alarm SMACFEX, 120V Hardwired with Battery Backup I4618AC Replacement (21033081)
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Main Highlights
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Kidde
Kidde i4618AC Hardwire Smoke Alarm, 4 Pack
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Main Highlights
- Easy Installation - Front battery pull tab allows battery activation without removing alarm from mounting bracket. Large mounting base makes mounting easier, protects surface paint from dirt and covers imperfections. Pre-stripped wiring harness with easy off cap does not require stripper tool. Tinned strands increase conductivity and wire nut grip.
- Fewer Callbacks - Large centrally located Test/Hush alarm control button. Dust cover protects sensor from contaminates during construction reducing nuisance alarms.
- User-Friendly Features - Easy access front loading battery door. Battery backup provides protection in case of power failure. Interconnectable with up to 24 devices (of which 18 can be initiating) including smoke, CO and heat alarms. See users guide for complete instructions.
- Alarm memory flashes red LED indicating which unit was the initiating alarm in interconnected system. Temperature Range: 40 degree Fahrenheit to 100 degree Fahrenheit
- Tamper resist locking feature deters alarm theft
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First Alert
First Alert BRK ADK-12 Smoke Alarm Adapter Plug for Kidde Hardwire Smoke Alarms, Pack of 12, White/Black
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Main Highlights
- Easily connect First alert BRK smoke and combination alarms to competitive alarms without rewiring
- Compatible for hardwire replacement of Kidde, Fyrnetics and Lifesaver models
- Ideal for retrofit applications
- See full list of compatible models below
- Pack of 12
- Faster turnarounds on job sites with the easy to install, most trusted alarms in home safety
- Convenient adapter plug saves time and installation costs when retrofitting existing homes or apartments.
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Kidde
Kidde Smoke Detector, Hardwired Smoke Alarm with Battery Backup, Front-Load Battery Door, Test-Silence Button, Pack of 4, White
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Main Highlights
- Front-load battery door For quick battery replacements
- Ionization sensing technology - hardwired smoke detector senses invisible fire particles, 85 decibel alarm alerts of fire
- Whole home detection - easily install 1 fire detector on each level of your home & in each bedroom
- Still works during power failures - smoke alarm with battery backup operates on a 120V power source with 9V battery included
- Test/Hush Button Its simple to test or hush false alarms by pressing the button right on the face of the device
- UL Certified, 10-year limited warranty
- Package contains 4 Kidde smoke detectors
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Kidde
Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup Smoke Alarm, Interconnectable, LED Warning Light Indicators, 2 Pack
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Main Highlights
- 2-IN-1 DETECTION: Alerts you to both smoke & carbon monoxide (CO) using a single, cost-effective detector.
- HARDWIRED & 2 AA BATTERY BACKUP (Included): Operates on 120V AC wiring (installed in the ceiling) with 2 AA alkaline batteries that provide battery backup coverage during power outages.
- ENHANCED SENSING TECHNOLOGY: Reduces false smoke alarms often caused by cooking. Comprehensively tested to meet the latest UL standards, meets UL 217 9th Edition, UL 2034 4th Edition, & FCC standards.
- INTERCONNECT CAPABILITY: When one alarm sounds, they all sound, so you can get out faster. (Different models offer different interconnection options and requirements. See User Guide for more info.)
- SELF-TESTING ALARM: Internal components ensure alarm is always operating as expected. Not a substitute for a manual push test, perform a button test once per week to verify alarm operation.
- 3 LED NOTIFICATIONS: LED lights indicate alarm status, green = normal operation, amber = operating error, red = smoke or carbon monoxide detected & a loud 85-decibel alarm will sound.
- TEST & HUSH BUTTON: Makes it easy to test the 5-inch combination detector and silence false alarms, should they occur.
- 10-YEAR LIMITED WARRANTY: Warranty begins when the alarm is powered on. If that date is unknown, it should be assumed that alarms should be replaced.
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First Alert
First Alert 9120B 120 Volt Hardwired Smoke Alarm With Battery Back Up 5 Pack
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Main Highlights
- Imported
- Tamper resistant locking pins, single button silence test and loud 85dB alarm
- 120-Volt AC power with 9-Volt battery backup (included) to keep alarm functioning during power outage
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Kidde
Kidde Smoke Detector, 10-Year Battery Powered, with LED Status Lights, 85 dB Alarm, 5-inches
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Main Highlights
- SMOKE DETECTION: Model20SD10 detects smoke over 25% faster*; sounds a loud 85-decibel alarm with red LED light for clear visual warnings; suitable for homes
- 10-YEAR BATTERY OPERATION: Built-in 10-year battery powers the alarm continuously; eliminates low-battery chirps, saves up to $40 over the life of the alarm in battery replacements, and includes a 10-year limited warranty** from first power-on
- REDUCED FALSE ALARMS: Uses advanced sensing technology that helps distinguish between real smoke and everyday cooking or steam; helps reduce false alarms while maintaining quick, accurate detection when smoke is present
- TESTED FOR SAFETY & PERFORMANCE: Rigorously tested to meet UL 217 10th Edition and FCC standards; designed to help ensure reliable performance and compliance with recognized safety requirements
- BUILT FOR HOMEOWNERS AND PROFESSIONALS: Designed for those who prioritize dependable, code-compliant protection; supports safety goals for homeowners, property managers, contractors, and professionals seeking long-term home safety assurance
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First Alert
First Alert BRK SMI100-AC Hardwired Smoke Alarm with Battery Backup, Contractor 6-Pack
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Main Highlights
- Note: A loose neutral (white wire) connection within the home junction box could prompt a device malfunction
- Equipped with an ionization sensor, this smoke alarm reliably detects smoke from fast flaming fires and alerts you with an 85 decibel alarm
- To ensure complete protection make sure to place one on each level of your home and in each bedroom
- Can connect to other compatible BRK or First Alert smoke detectors, to ensure all alarms will sound when smoke is detected
- Simple to use, with a single test/silence button, and side load battery compartment; Tamper resistant locking brackets and universal mounting brackets make installation easy
- Rigorously tested to meet UL standards. Emits T3 pattern
- Keep your family safe with this 6 pack of hardwired smoke alarms; the battery backup means constant monitoring, even if there's a power failure
- Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety. easy-to-access battery drawer that allows you to replace the battery without dismounting the alarm
- First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018)
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First Alert
First Alert Interconnect Hardwire Smoke Alarm with Battery Backup & Voice Alerts, 3-Pack
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Main Highlights
- First Alert BRK Precision Detection advanced sensing technology reduces cooking nuisance alarms and delivers early warning
- Voice & location alerts tell you the location of danger
- Latching Alarm Indicator visually identifies the unit that initiated the alarm or low battery
- Battery backup provides continuous protection during power outages
- Interconnects with most First Alert and BRK alarms so when one sounds, all compatible alarms sound to provide an early warning