Kidde 20SA10 Hardwired Smoke Alarm with 10-Year Sealed Battery Backup, Photoelectric, Interconnectable

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[shortdesc] Alarm Type Smoke Alarm Power Source Hardwired (120V AC) with 10-Year Sealed Battery Backup Sensor Photoelectric Interconnects Yes (up to 24 Kidde devices) Battery 10-Ye ar Sealed Lithium [/shortdesc] Hardwired Photoelectric Smoke Alarm with 10-Year Sealed Battery Backup The Kidde 20SA10 Hardwired Smoke Alarm delivers next-level fire safety with cutting-edge photoelectric sensing technology and a 10-year sealed lithium backup battery. Designed to detect smoke up to 25% faster, it uses enhanced sensing technology to reduce false alarms caused by cooking and steam while maintaining quick, accurate detection when real smoke is present. Operating on 120V AC with a sealed 10-year battery backup, this alarm provides continuous protection during power outages and eliminates low-battery chirps. The interconnect feature allows up to 24 Kidde alarms to sound together for whole-home detection. Rigorously tested to meet UL 217 10th Edition and FCC standards, it features self-testing internal components, end-of-life notification, alarm memory, and a 10-year limited warranty. Top Features Photoelectric Smoke Sensor: Detects smoke up to 25% faster with enhanced sensing technology that reduces false alarms from cooking. Hardwired with 10-Year Sealed Battery Backup: 120V AC powered with sealed lithium battery — no battery changes for 10 years, saves up to $40 in replacements. Interconnect Capability: Connects with up to 24 Kidde devices via hardwire — when one alarm sounds, they all sound. Self-Testing & Alarm Memory: Internal self-diagnostics plus 24-hour alarm memory that blinks the red LED every 15 seconds if smoke was detected. 85 dB Audible Alert with Red LED: Loud 85-decibel alarm at 10 ft with red LED visual warning — meets UL 217 10th Edition standards. Category Specification Detection and Sensing Type Smoke Alarm Sensor Type Photoelectric Sensor Information Enhanced sensing technology detects smoke up to 25% faster while reducing nuisance alarms caused by cooking and steam. Sound Level 85 dB at 10 ft Features Fast Alerts, Alarm Memory, Self-Testing, End-of-Life Notification, Enhanced Cooking Resistance Power and Interconnectivity Power Source Hardwired 120V AC, 60 Hz Battery Backup Yes — 10-Year Sealed Lithium Battery Replaceable No (sealed, maintenance-free) Low Battery Chirps Eliminated — sealed battery design Hardwired Interconnectivity Yes — up to 24 Kidde devices Wiring AC wiring with plug-in quick connector Max Interconnect Wire Length 1,000 ft Design and Build Model Number 20SA10 Mfr Item Number 21031556 Diameter 5 inches Depth 2 inches Height 5 inches Weight 0.77 lbs Color White Mounting Twist-and-click bracket (wall or ceiling, single gang or 4-inch octagon junction box) Operating Temperature 40°F to 100°F (4.4°C to 37.8°C) Humidity Range Up to 95% RH, non-condensing Warranty 10-Year Limited (alarm + battery) Compliance and Certification Certifications UL 217 10th Edition, FCC Series Kidde DETECT The Kidde 20SA10 is rigorously tested to meet UL 217 10th Edition and FCC standards, delivering dependable, code-compliant performance trusted by homeowners, property managers, contractors, and safety professionals. Backed by a 10-year limited warranty on both the alarm and the sealed battery. Don't know what type of smoke alarm is right for your home? Check out our guide on how to choose the right smoke detector for your home. === In The Box 1 Kidde 20SA10 Hardwired Smoke Alarm 1 Twist-and-Click Mounting Bracket 1 Plug-in Quick Connector 1 User Guide Info & Guides User Manual Download Specification Sheet Download Show more