Universal Security Instruments USI/SMCO/REP 3-Year Replaceable Battery Combination Smoke and Carbon Monoxide Detector with Voice Alarm and LED Warning Light

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About This Product

The USI Combo Smoke, Fire, and Carbon Monoxide Battery Alarm provides reliable all-in-one home protection. Featuring Sensing Plus Multi-Criteria Detection, this advanced photoelectric alarm accurately identifies both slow-burning and fast-flaming fires for early warning and rapid response.

An integrated electrochemical sensor detects carbon monoxide, delivering multiple safety features in a compact unit. Powered by two AA batteries, it can be placed anywhere for continuous protection during power outages. The alarm also includes a voice alert system, clearly distinguishing between fire and CO alerts, as well as replacement reminders. Advanced technology reduces nuisance alarms from everyday activities such as cooking, and a test/silence button allows easy management of false alarms. UL certification ensures reliable performance and safety.

Highlights

• Advanced Detection: Sensing Plus multi-criteria technology identifies slow-burning and fast-flaming fires 

• Battery Powered: Uses 2 AA batteries for continuous protection, even during power outages 

• False Alarm Resistance: Minimizes nuisance alarms from normal household activity 

• Compliance: Meets UL 217 (9th Edition), UL 2034 (4th Edition), FHA, HUD, and NFPA requirements 

• Easy Installation: Simple setup for hassle-free placement 

• Tamper-Proof Design: Prevents unauthorized removal 

• Protective Cover: Dust/paint cover protects the unit during construction or renovations 

• Audible Alert: 85-decibel alarm is easily heard from a distance or while sleeping 

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