{"product_id":"kidde-20sar-hardwired-smoke-detector-with-aa-battery-backup","title":"Kidde 20SAR Hardwired Smoke Detector with AA Battery Backup","description":"\u003cp\u003eIn this review of the Kidde 20SAR hardwired smoke detector, the bottom line is simple: this is a practical upgrade for homeowners who want a reliable ceiling-mounted alarm with battery backup and interconnect capability. It is aimed at families and landlords who need a device that meets current safety standards and reduces nuisance triggers from cooking. The reviewer found the unit straightforward to install in typical 120V ceiling wiring, appreciated the included AA backup batteries, and valued the clear LED status lights that make it easy to verify operation at a glance.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardwired with battery backup:\u003c\/strong\u003e Uses 120V AC wiring for continuous power while two included AA batteries provide reliable backup during outages.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced sensing technology:\u003c\/strong\u003e Designed to reduce false alarms often caused by cooking while still detecting real smoke events quickly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterconnect capability:\u003c\/strong\u003e When one alarm detects smoke, all interconnected units sound so occupants in other rooms are alerted immediately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED warning light indicators:\u003c\/strong\u003e Green, amber, and red LEDs clearly communicate normal operation, errors, and smoke detection without guesswork.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest and hush button:\u003c\/strong\u003e Built-in test and silence functions make weekly checks easy and allow temporary silencing of nuisance alarms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-testing components:\u003c\/strong\u003e Internal self-tests help ensure the alarm is functioning, supplementing weekly manual push-button tests.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe Kidde 20SAR is best for homeowners, renters with permission to hardwire, and property managers who want a code-minded alarm that pairs AC power with replaceable AA backup batteries. It suits living rooms, hallways, bedrooms, and kitchens where reduced nuisance alarms and a visible status light are helpful.\u003c\/p\u003e\n\u003cp\u003ePeople who want a purely wireless battery-only solution or who need specialized interconnect options beyond compatible Kidde models should look elsewhere. Also, anyone uncomfortable with ceiling wiring should hire an electrician rather than DIY the hardwired connection.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncludes 2 AA battery backup so the alarm remains active during power loss.\u003c\/li\u003e\n\u003cli\u003eInterconnect feature increases household safety by sounding all linked alarms together.\u003c\/li\u003e\n\u003cli\u003eLED indicators and a test\/hush button make operation and troubleshooting straightforward.\u003c\/li\u003e\n\u003cli\u003eEnhanced sensing helps reduce false alarms from common cooking smoke.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome users report mixed experiences with wiring compatibility and night-time false triggers on specific installs, so wiring and model matching matter.\u003c\/li\u003e\n\u003cli\u003eInterconnect compatibility depends on other Kidde models and may require checking the user guide before expanding a system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e20SAR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e120V AC hardwired with 2 AA battery backup (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlarm sound\u003c\/td\u003e\n\u003ctd\u003e85-decibel alarm (3 long beeps) with flashing red LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e5 in diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandards\u003c\/td\u003e\n\u003ctd\u003eMeets UL 217 9th Edition and FCC standards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterconnect\u003c\/td\u003e\n\u003ctd\u003eYes, compatible with select Kidde models (see User Guide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e10-year limited warranty starting when powered on\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Kidde 20SAR is a solid value for anyone upgrading to a hardwired smoke alarm with battery backup and interconnect capability. It balances reliable detection, reduced nuisance alarms, and clear LED status indicators, making it a practical choice for most homes and rental units provided wiring and model compatibility are confirmed.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this alarm work during a power outage?\u003c\/strong\u003e\u003cbr\u003eThe unit runs on 120V AC and continues operating on the two included AA alkaline batteries during a power loss.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it trigger other alarms in the house?\u003c\/strong\u003e\u003cbr\u003eYes, it is interconnectable so when compatible Kidde alarms detect smoke, they will all sound together; check the User Guide for compatibility details.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow often should the alarm be tested?\u003c\/strong\u003e\u003cbr\u003ePerform a manual push-button test once per week; the alarm also has internal self-testing components but weekly tests are still recommended.\u003c\/p\u003e","brand":"Kidde","offers":[{"title":"Default Title","offer_id":48636335063259,"sku":"B0CX6C1JHJ","price":34.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61W8lDdh8fL._AC_SL1500.jpg?v=1778728926","url":"https:\/\/gearmusthave.com\/products\/kidde-20sar-hardwired-smoke-detector-with-aa-battery-backup","provider":"GearMustHave","version":"1.0","type":"link"}