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    First Alert SMI100-AC Hardwire Smoke Alarm with Battery Backup, 1-Pack
    First Alert SMI100-AC Hardwire Smoke Alarm with Battery Backup, 1-Pack
    First Alert SMI100-AC Hardwire Smoke Alarm with Battery Backup, 1-Pack
    First Alert SMI100-AC Hardwire Smoke Alarm with Battery Backup, 1-Pack
    First Alert SMI100-AC Hardwire Smoke Alarm with Battery Backup, 1-Pack
    First Alert SMI100-AC Hardwire Smoke Alarm with Battery Backup, 1-Pack
    First Alert SMI100-AC Hardwire Smoke Alarm with Battery Backup, 1-Pack

    First Alert SMI100-AC Hardwire Smoke Alarm with Battery Backup, 1-Pack

    €130.99
    Experience unmatched safety with First Alert’s Precision Detection technology, designed to minimize false alarms while providing early, reliable fire warnings. This advanced sensor meets new industry standards, ensuring your home stays protected against potential fire hazards. The innovative early warning interconnect feature means when one alarm detects danger, all linked alarms sound simultaneously, amplifying your family’s safety. Equipped with a battery backup, it guarantees constant protection even during power outages. Installation is hassle-free with the Quick Connect Plug—no rewiring needed. Plus, an alarm indicator visually identifies which unit triggered the alert for swift action. Elevate your home security with First Alert’s state-of-the-art detection system, combining precision, reliability, and user-friendly installation for comprehensive peace of mind.

    ✨Free delivery✨

    💳 Pay in 3 settlements of €43.66 with Klarna
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      First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 1-Pack

      The First Alert SMI100-AC is a reliable hardwired smoke alarm featuring an interconnect system that alerts you throughout your home in the event of fire. Equipped with a battery backup, it ensures constant protection even during power outages. Designed for easy installation and long-lasting safety, this 1-pack offers peace of mind for you and your family.

      First Alert SMI100-AC overview

      A sleek wide-angle view of the First Alert SMI100-AC smoke alarm showcasing its modern design. This image emphasizes the device's large, easy-to-access test and reset button for quick safety checks. Perfectly sized for residential use, it blends functionality with subtle aesthetics.

      Smoke alarm installation

      Clear depiction of the First Alert smoke alarm installed on a ceiling. The image highlights how the device integrates seamlessly with home ceilings, demonstrating the simplicity of hardwired installation and its discreet presence within your living space.

      Detailed close-up of sensor

      Close-up of the smoke sensor and circuitry, illustrating the advanced technology within the First Alert SMI100-AC that provides quick and accurate smoke detection. Designed for optimal responsiveness in emergency situations.

      Battery backup feature

      Visual of the battery backup compartment, ensuring uninterrupted smoke detection. This feature offers vital protection during power failures, maintaining safety when you need it most.

      Interconnect functionality

      Illustration of the device’s interconnect feature, which allows multiple alarms to sound simultaneously. This system maximizes safety by providing whole-home alerts in the event of smoke detection.

      Ease of maintenance

      The smoke alarm’s removable design for easy maintenance, including battery replacement and routine testing. This feature encourages regular upkeep to ensure dependable performance.

      Packaging and included components

      Packaging presentation of the First Alert SMI100-AC including all essential components required for installation. This image highlights the complete 1-pack solution designed for immediate use in your home.

      Recommended placement for optimal safety

      Recommended placement of smoke alarms throughout your home according to safety guidelines. Proper positioning is essential to maximizing the smoke alarm’s effectiveness and ensuring early detection.

      Easy installation step-by-step

      Step-by-step visual demonstrating the straightforward installation process. The alarm’s design supports quick hardwiring and battery backup setup, enabling you to secure your home effortlessly.

      Testing functionality for reliable performance

      Demonstration of the testing function to ensure reliable alarm performance. Regular testing helps maintain the device in peak working condition, providing confidence in your home safety.

      Replacing and maintaining your smoke alarm

      Guidance on replacing smoke alarms and upkeep to ensure long-lasting protection. Proper maintenance extends the life of your alarm and sustains effective fire safety coverage.

      First Alert
      B0CJMN3443
      500 Items

      Specific References

      Rated 5.00 on the scale 1 - 5 based on 3 customer reviews

      Far Fewer Nuisance Alarms Than My Old Hardwired Detector

      I upgraded from an older hardwired smoke alarm that constantly went off from cooking steam and gave no clue which unit was actually triggered. With this First Alert system, the precision sensor really does cut down on false alarms, and the interconnect feature makes all alarms sound together while a light shows which one started it. The battery backup and quick plug-in install were nice bonuses, but the real daily difference is less annoying chirping and faster knowing where to check when it does go off.

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      From Constant False Alarms to Quiet, Reliable Protection

      Before installing these First Alert alarms, we were constantly jumping up for burnt-toast false alarms and wondering if they’d fail when it really mattered. Now the Precision Detection feels almost invisible day-to-day—no nuisance beeps, a clear indicator showing exactly which unit went off during a test, and the peace of mind that if one ever detects danger, the whole house will know instantly, even during an outage.

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      Absolutely blown away by the smart, stress‑free protection this alarm gives my home!

      I am genuinely impressed by how reliably this First Alert system works without driving us crazy with false alarms! The Precision Detection sensor catches issues early, and the interconnected alarms all sounding together makes the whole house instantly aware, plus the visual indicator shows exactly which unit was triggered. Installation was a breeze with the Quick Connect Plug, the battery backup gives real peace of mind during outages, and free delivery was the cherry on top of an already fantastic upgrade to our home safety.

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