First Alert 10-Year Back-Up Hard-Wired Smoke and CO Alarm with Ionization SensorMeet a thoughtful balance of constant protection and user-friendly installation. The First Alert 10-Year Back-Up Hard-Wired Smoke and Carbon Monoxide Alarm combines hard-wired power with a long lasting 10-year battery backup to keep...

Overview The First Alert SMI100 is a dependable 2-pack of battery-operated smoke alarms designed for simple, flexible placement throughout your home. Built with First Alert's Precision Detection technology, these alarms aim to minimize false triggers while delivering clear, timely alerts when smoke is present....

Protect spaces where smoke alarms do not fit The First Alert HD6135FB hardwired heat alarm is designed for garages, crawl spaces, laundry rooms, and other areas where a standard smoke detector may not be suitable. It focuses on heat conditions to provide a practical...

Meet the First Alert SM210L The First Alert SM210L is a 10-year sealed battery smoke alarm designed for dependable protection with everyday practicality. Its slim ceiling profile sits neatly in hallways and bedrooms, while an integrated Safety Path Light casts a gentle glow to...

Overview The First Alert SMI100-AC Hardwire Interconnect Smoke Alarm with Battery Backup is built for modern homes, combining dependable detection with easy upgrade paths. It works with your existing hardwired system and can be expanded into a whole-home network without complicated rewiring, offering an...

The FIRST ALERT SC7010B-3 3-pack brings together smoke and carbon monoxide protection in a single, hardwired system. Each unit combines a photoelectric smoke sensor with an electrochemical carbon monoxide sensor, leveraging Optipath 360 technology to broaden coverage while reducing false alarms. With a built-in...

Grow your home safety with the First Alert 9120B Smoke Detector 6-Pack. This set combines hardwired protection and a reliable 9-volt battery backup, helping maintain alert coverage across your home even during outages. Thoughtfully designed for multi-level layouts, it supports straightforward installation and ongoing...

Overview The BRK SMI100-AC redefines home safety with faster, easier installation and smarter sensing. This 6-pack of hardwired smoke detectors includes a 9-volt battery backup, delivering peace of mind during power interruptions while maintaining dependable interconnectivity across your home. Key Benefits 6-pack hardwired alarms...

OverviewThe FIRST ALERT CO600 3-pack offers simple, plug-in carbon monoxide detection for multiple rooms. Designed to fit standard outlets with no mounting required, these detectors provide flexible placement across living areas, hallways, and bedrooms. A compact footprint means you can place them where you...

The First Alert CO400 Carbon Monoxide Detector is a practical, battery-powered solution designed for simple, dependable protection across your home. This 6-pack brings flexible coverage and peace of mind, with each alarm ready to go right out of the box after you insert the...

Smart safety, for every room The First Alert SC5 Hardwire Smart Smoke & CO Alarm combines 2-in-1 protection with modern connectivity. Designed to guard against smoke and carbon monoxide, this device stays powered even when your home experiences a blackout, thanks to a reliable...

Overview The First Alert BRK SC9120B-6 is a hardwired, dual-sensor detector that combines smoke detection with carbon monoxide sensing. Equipped with a battery backup, this unit remains vigilant during power outages and helps you monitor multiple rooms in a typical single-family home. Sold as...

Smart safety you can rely on, now connected The First Alert SC5 Battery Smart Smoke & CO Alarm combines a trusted 2‑in‑1 detector with modern smart features. This battery-powered unit detects both smoke and carbon monoxide and communicates through the First Alert app, so...

Smart protection for your home Protect multiple spaces with a reliable trio of hardwired smoke and carbon monoxide detectors. Designed for overhead mounting and hard‑to‑reach locations, the rigid shaft and corrosion‑resistant coating help ensure precise installation and lasting durability. The 3‑pack provides broad coverage...

OverviewMeet the First Alert SC9120B, a dual sensor hardwired alarm that combines reliable smoke detection with electrochemical carbon monoxide sensing. Designed for easy replacement in homes with existing wiring, it blends practical protection with user friendly operation. This unit aims to deliver clear alerts...

Overview Meet the First Alert 9120B, a 120-volt hardwired smoke alarm with a battery backup designed for reliable everyday safety. This five-pack is ideal for placing one in each key area of your home to help you detect fast-spreading fires early, even during a...

OverviewMeet the First Alert SMICO100-AC, a hardwired 2-in-1 smoke and carbon monoxide alarm designed to work in concert with other alarms across your home. This 12-pack delivers broad coverage for multiple rooms and levels, helping you stay aware of potential issues without interruption.Built with...

Smart, reliable protection for every room Enhance home safety with the First Alert Interconnect Hardwire Smoke Alarm. This 3-pack brings together interconnected alarms, a built-in battery backup, and clear voice alerts to help you detect danger early and respond with confidence. The crisp voice...

Overview Discover the redesigned BRK 9120 series from First Alert. This 12-pack of hardwired smoke alarms blends faster installation with smarter, more reliable performance. With a 120-volt AC supply and a 9-volt battery backup, these alarms stay vigilant even during power outages, helping you...

Meet 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. Equipped with an electrochemical CO sensor and an ionization-based smoke sensor,...