Universal Security Instruments USI/SM/HWREP Hardwired and 1-Year Battery Backup Smoke Detector with Photoelectric Sensor

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About This Product

Get reliable, whole-home protection with the USI Hardwired Smoke Alarm featuring a replaceable battery backup and Sensing Plus Multi-Criteria Detection. This advanced photoelectric alarm quickly identifies both slow-smoldering and fast-flaming fires for early warning and fast response. It connects with other hardwired alarms in your home, so when one alarm sounds, all interconnected alarms do too-ensuring broader safety coverage.
Equipped with a replaceable 9-volt backup battery, the alarm stays active even during power outages. An end-of-life alert signals when it’s time to replace the unit after 10 years. Designed to minimize false alarms from everyday activities like cooking, it also features a test/silence button for added control. Backed by over five decades of expertise, USI delivers dependable and long-lasting fire safety for your home.
Highlights

• Detects both slow and fast-growing fires with Sensing Plus Multi-Criteria Detection

• Interconnectable with other alarms-when one sounds, they all do

• Backup battery ensures continued protection during power loss

• Minimizes false alarms caused by routine household activities

• Compliant with UL 217 9th Edition, FHA, HUD, and NFPA standards

• Simple, hassle-free installation

• Tamper-resistant design prevents unauthorized removal

• Protective dust/paint cover shields unit during renovations

• Loud 85 dB alarm alerts occupants throughout the home

Specifications