{"product_id":"hardwired-smoke-and-carbon-monoxide-detector-3-pack-battery-backup","title":"Hardwired Smoke and Carbon Monoxide Detector 3-Pack - Battery Backup","description":"\u003cp\u003eIn this review of the hardwired smoke and carbon monoxide detector 3-pack, the bottom line is simple: this kit is for homeowners who want dependable, interconnected protection that continues to work through power outages. The pack combines an electrochemical CO sensor with an ionization smoke sensor and a battery backup so the units keep monitoring if household power fails. Installation is straightforward for anyone comfortable with wired detectors, and the loud 85-decibel alarm plus clear indicator lights make it easy to understand what triggered an alert.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardwired connection:\u003c\/strong\u003e Connects to existing home wiring so detectors maintain constant power and can be linked to sound together for whole-house alerts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery backup:\u003c\/strong\u003e Ensures continuous monitoring during power outages so the alarm remains active when you need it most.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual sensing technology:\u003c\/strong\u003e Uses an electrochemical CO sensor and an ionization smoke sensor to detect both carbon monoxide and fine particles from fast-burning fires.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudible and visual alerts:\u003c\/strong\u003e An 85-decibel siren and indicator lights clearly communicate the presence of smoke or carbon monoxide for quick response.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterconnectivity:\u003c\/strong\u003e Can link with other compatible BRK or First Alert detectors so all connected alarms sound when a threat is detected.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-friendly design:\u003c\/strong\u003e Single test\/silence button, side-load battery compartment, and tamper-resistant locking brackets simplify use and installation.\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 wanting a reliable, wired solution that integrates with an existing alarm network and continues to function during outages thanks to the battery backup. It suits multi-room coverage needs where interconnected alerts provide an added safety layer for families.\u003c\/p\u003e\n\u003cp\u003eIt may be less appropriate for someone who cannot or will not access household wiring; for purely wireless or battery-only needs a different model would be simpler. Also, those preferring photoelectric-only smoke sensing for slow, smoldering fires should consider alternate detectors tailored to that detection type.\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 for units that plug into existing wiring harnesses, saving time during replacement.\u003c\/li\u003e\n\u003cli\u003eReliable combination of electrochemical CO sensing and ionization smoke detection covers multiple hazards.\u003c\/li\u003e\n\u003cli\u003eBattery backup and tamper-resistant features increase safety and peace of mind.\u003c\/li\u003e\n\u003cli\u003eInterconnectivity ensures all compatible alarms will sound together for faster household notification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRequires access to home wiring for hardwiring, so not ideal for those who need a strictly portable or wireless solution.\u003c\/li\u003e\n\u003cli\u003eThe ionization smoke sensor is optimized for fast-burning fires and may not detect smoldering fires as quickly as photoelectric-only units.\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\u003eHardwired combination smoke and CO detector (3-pack)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensors\u003c\/td\u003e\n\u003ctd\u003eElectrochemical CO sensor; ionization smoke sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003eHardwired with battery backup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlarm volume\u003c\/td\u003e\n\u003ctd\u003e85 decibel siren\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterconnectivity\u003c\/td\u003e\n\u003ctd\u003eCan connect to compatible BRK or First Alert detectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eSide-load battery compartment, tamper-resistant and universal mounting brackets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThis 3-pack is a practical choice for people replacing existing wired detectors or outfitting several rooms with interconnected protection; it pairs dependable CO and ionization smoke sensing with battery backup and simple controls. Given its ease of installation, clear alerts, and value for multi-unit coverage, it is a sensible investment for most families who already have hardwired alarm infrastructure.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan these units still work during a power outage?\u003c\/strong\u003e\u003cbr\u003eYes, each detector includes a battery backup so monitoring continues if household power fails.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill all alarms sound if one unit detects smoke or CO?\u003c\/strong\u003e\u003cbr\u003eYes, these detectors can interconnect with compatible BRK or First Alert units so all connected alarms will sound when a threat is detected.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat kind of sensors are used?\u003c\/strong\u003e\u003cbr\u003eThe package combines an electrochemical sensor for carbon monoxide and an ionization sensor for detecting fine particles from fast-burning fires.\u003c\/p\u003e","brand":"First Alert","offers":[{"title":"Default Title","offer_id":48188144484571,"sku":"B07B4C7MQ6","price":209.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/715UhOnphWL._AC_SL1500.jpg?v=1769454883","url":"https:\/\/gearmusthave.com\/products\/hardwired-smoke-and-carbon-monoxide-detector-3-pack-battery-backup","provider":"GearMustHave","version":"1.0","type":"link"}