Universal Security Instruments 4-Pack Hardwired and 1-Year Battery Backup Smoke Detector with Photoelectric Sensor

Experience unparalleled protection with the USI Hardwired Smoke Alarm with Replaceable Battery Backup. Equipped with Sensing Plus Multi-Criteria Detection, this advanced photoelectric alarm accurately identifies both slow-burning and fast-flaming fires, ensuring early detection and rapid response. This hardwired alarm connects to other hardwired alarms in the home to provide comprehensive coverage throughout the space. An included replaceable 9-Volt battery ensures continuous protection even during outages. An End-of-life alert reminds you it's time to replace your smoke alarm after 10-years for uninterrupted coverage. Advanced technology reduces nuisance alarms, minimizing disruptions from activities like cooking. Should you experience a false alarm, easily silence it with the test/silence button. With UL certification, you can trust in the reliability and performance of USI Hardwired Smoke Alarms. Invest in peace of mind and protect your loved 1 s with this advanced home safety solution. With over 50-years of experience as a leader in home safety, USI provides reliable, long-lasting protection for your home.

• Hardwired smoke alarm with replaceable battery backup
• Easy installation, 10-year warranty on detector