{"product_id":"first-alert-smoke-alarm-interconnect-hardwire-detector-3-pack","title":"First Alert Smoke Alarm Interconnect Hardwire Detector 3-Pack","description":"\u003cp\u003eOur review of the First Alert SMI100-AC hardwire smoke alarm 3-pack finds it best for homeowners who want a straightforward replacement for existing hardwired alarms and a reliable early warning system. The single biggest reason to buy is its \u003cstrong\u003einterconnect hardwire with battery backup\u003c\/strong\u003e, which ensures continuous protection during outages and alerts all compatible units when one detects smoke. Installation is designed to be quick with a Quick Connect Plug, and the unit's Precision Detection technology aims to cut down on nuisance cooking alarms while still providing timely detection of real fire events.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Detection:\u003c\/strong\u003e Advanced sensing technology reduces false alarms from cooking while still providing early warning for actual fires.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterconnect capability:\u003c\/strong\u003e When one alarm sounds, all compatible alarms will sound too, helping alert everyone in the home quickly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery backup:\u003c\/strong\u003e Provides continuous protection during power outages so the alarm remains active even when AC power is lost.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick Connect Plug:\u003c\/strong\u003e Included plug allows easy installation and replacement of existing alarms without the need to rewire the circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlarm indicator:\u003c\/strong\u003e Visual identification of the unit that initiated the alarm helps locate the source quickly during an event.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis 3-pack is ideal for homeowners or renters replacing older hardwired smoke detectors who want an \u003cstrong\u003einterconnected home alarm\u003c\/strong\u003e system without complex rewiring. It suits multi-room coverage in small to medium houses where simple, fast installation and battery backup are priorities.\u003c\/p\u003e\n\u003cp\u003eIt may be less suitable for buyers who need smart home connectivity, voice alerts, or combination carbon monoxide sensing in the same unit; those users should look for models that explicitly include networked app features or multi-sensor combinations.\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\u003eEasy installation with the Quick Connect Plug makes replacement quick and straightforward.\u003c\/li\u003e\n\u003cli\u003ePrecision Detection reduces nuisance alarms from cooking, improving everyday usability.\u003c\/li\u003e\n\u003cli\u003eBattery backup and interconnect function provide dependable whole-home alerting during outages.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome customers report mixed experiences with battery installation and wiring expectations during replacement.\u003c\/li\u003e\n\u003cli\u003eDoes not include smart features or combined carbon monoxide detection in a single unit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eHardwire interconnect smoke alarm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSMI100-AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack size\u003c\/td\u003e\n\u003ctd\u003e3-Pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003eHardwire with battery backup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eQuick Connect Plug, no rewiring required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensing technology\u003c\/td\u003e\n\u003ctd\u003ePrecision Detection advanced sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterconnect\u003c\/td\u003e\n\u003ctd\u003eYes, early warning interconnect with compatible alarms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe First Alert SMI100-AC 3-pack is a strong value for anyone needing reliable, easy-to-install hardwired smoke protection with battery backup and interconnect capability. It replaces older units cleanly, reduces nuisance cooking alarms with \u003cstrong\u003ePrecision Detection\u003c\/strong\u003e, and offers dependable whole-home alerts, making it a practical choice for most households seeking straightforward fire safety upgrades.\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\u003eYes. The unit includes battery backup so it continues to operate when AC power is lost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill one alarm trigger all alarms in the house?\u003c\/strong\u003e\u003cbr\u003eYes. The alarms interconnect so when one sounds, all compatible connected alarms will sound as well.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs installation difficult if I already have hardwired detectors?\u003c\/strong\u003e\u003cbr\u003eNo. The included Quick Connect Plug is designed to allow easy replacement without rewiring, and many customers report quick installation.\u003c\/p\u003e","brand":"First Alert","offers":[{"title":"Default Title","offer_id":48654024311003,"sku":"B0CJLMM1TQ","price":51.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71hBZ_xWU9L._AC_SL1500.jpg?v=1778735527","url":"https:\/\/gearmusthave.com\/products\/first-alert-smoke-alarm-interconnect-hardwire-detector-3-pack","provider":"GearMustHave","version":"1.0","type":"link"}