{"product_id":"first-alert-sc-9120b-hardwired-smoke-co-alarm-with-battery-backup-2-pack","title":"First Alert SC-9120B Hardwired Smoke \u0026 CO Alarm with Battery Backup - 2 Pack","description":"\u003cp\u003eMeet the First Alert SC-9120B Hardwired Smoke and Carbon Monoxide Alarm. This 2-pack delivers continuous protection with a built-in battery backup, so monitoring stays active even if the power dips or briefly fails.\u003c\/p\u003e \u003cp\u003eEquipped with an electrochemical CO sensor and an ionization-based smoke sensor, it provides rapid detection in typical home environments. When linked with other BRK or First Alert hardwired detectors, you can create a coordinated safety net across your residence, helping you respond quickly to different risks.\u003c\/p\u003e \u003ch3\u003eReal-life benefits you may notice\u003c\/h3\u003e \u003cp\u003eIn everyday scenarios, this system can help you notice smoke from cooking or a small fire and detect potentially dangerous CO buildup from heating systems. The two-pack design supports safety coverage on multiple floors or rooms where detectors are often needed most.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eHardwired design with battery backup gives continuous monitoring during outages\u003c\/li\u003e \u003cli\u003eInterconnect capability allows alerts to ripple through compatible detectors for home-wide awareness\u003c\/li\u003e \u003cli\u003eIndicator lights clearly differentiate smoke from CO alarms at a glance\u003c\/li\u003e \u003cli\u003eSingle test\/silence button simplifies routine checks and temporary silences\u003c\/li\u003e \u003cli\u003eSide-load battery compartment enables quick maintenance without tools\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eTwo units provide flexible placement for living rooms, hallways, bedrooms, and basements, supporting a practical safety setup for single-family homes. The SC-9120B emphasizes reliability, ease of use, and steady performance—without promising outcomes, but with clear potential for improved situational awareness.\u003c\/p\u003e \u003ch3\u003eInstallation and ongoing care\u003c\/h3\u003e \u003cp\u003ePair with compatible detectors to extend coverage across your home. Regularly test the alarms using the built-in button and replace batteries via the convenient side-load compartment as needed. Ensure the interconnects remain enabled so alerts can propagate when necessary.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is included in the First Alert SC-9120B 2-pack and how does it work?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: A two-pack of hardwired CO and smoke alarms with battery backup; they interconnect with compatible BRK\/First Alert detectors to provide coordinated alerts across a single-family residence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I test and maintain the SC-9120B?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use the single test\/silence button to verify function; replace the side-load battery as needed and keep interconnects enabled for ongoing protection.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"First Alert","offers":[{"title":"Default Title","offer_id":47461487378606,"sku":"B078HW9GY4","price":250.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/6012\/9710\/files\/first-alert-sc-9120b-hardwired-smoke-co-alarm-battery-backup.jpg?v=1770248651","url":"https:\/\/handyskook.ca\/products\/first-alert-sc-9120b-hardwired-smoke-co-alarm-with-battery-backup-2-pack","provider":"HandySkook","version":"1.0","type":"link"}