Universal Security Instruments USI/SM/HW10YR/P Hardwired and 10-Year Battery Backup Smoke Detector with Photoelectric Sensor and Voice Alert

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About This Product

The USI Hardwired Smoke Alarm with 10-Year Battery Backup delivers advanced protection for your home. Featuring Sensing Plus Multi-Criteria Detection, this alarm quickly and accurately detects both slow-smoldering and fast-flaming fires, ensuring early warning and faster response. It can be interconnected with other hardwired alarms in your home to provide full coverage.

The 10-year sealed backup battery ensures continuous operation and eliminates the need for frequent battery changes. It replaces repeated low-battery chirps with a single end-of-life alert after 10 years. A voice feature clearly announces fire emergencies and replacement notifications.

Designed to reduce false alarms—especially from everyday activities like cooking—this unit also includes a test/silence button for quick response to non-emergency alerts. With more than 50 years of experience in home safety, USI offers dependable and long-lasting smoke detection.

Highlights

• Sensing Plus technology detects both smoldering and fast-moving fires 

• Interconnects with other hardwired alarms for whole-home protection 

• Voice alerts clearly differentiate between fire warnings and maintenance needs 

• 10-year sealed battery provides uninterrupted safety and eliminates frequent battery replacements 

• End-of-life signal reminds you when it’s time to replace the unit 

• Advanced false alarm resistance reduces nuisance triggers 

• Complies with UL 217 8th Edition, FHA, HUD, and NFPA standards 

• Easy to install with a user-friendly setup 

• Tamper-proof design deters unauthorized removal 

• Dust/paint cover shields alarm during renovations 

• Loud 85 dB alarm can be heard throughout the home, even during sleep 

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