Universal Security Instruments USI/SMCO/HWREP Hardwired and 3-Year Replaceable Battery Backup Combination Smoke and Carbon Monoxide Detector w/ Voice Alarm

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About This Product

The USI Hardwired Combo Smoke, Fire, and Carbon Monoxide Alarm offers reliable protection with advanced sensing technology. Featuring Sensing Plus Multi-Criteria Detection, it quickly identifies both slow-burning and fast-flaming fires. An integrated electrochemical sensor detects carbon monoxide, providing full-spectrum protection in one compact unit. This alarm connects with other compatible hardwired units to ensure simultaneous alerts throughout the home. It includes battery backup for continued operation during power outages. The voice alert system clearly distinguishes between fire and carbon monoxide warnings, while a test/silence button allows for easy alarm control. Designed to reduce false alarms from everyday activities like cooking, this unit supports dependable, low-maintenance home safety.

Highlights

• Detects both slow and fast-burning fires with multi-criteria sensing 

• Interconnects with other compatible alarms for full-home alerts 

• Powered by hardwiring with 2 replaceable AA backup batteries 

• Reduced false alarms for fewer interruptions 

• Complies with UL 217 (9th ed.), UL 2034 (4th ed.), FHA, HUD, and NFPA standards 

• Simple, tool-free installation 

• Tamper-resistant design prevents unauthorized removal 

• Includes dust/paint cover for protection during renovations 

• 85 dB alarm ensures alerts can be heard clearly throughout the home 

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