The First Alert Battery-Operated Combination Photoelectric Smoke and Carbon Monoxide Alarm packs premium detection capabilities into a sleek, compact design. For those who want a reliable detection system without hiring an electrician or worrying about hardwiring, this battery-operated smoke and carbon monoxide detector is an ideal solution. The alarm comes equipped with a photoelectric sensor and a patented smoke entry system, allowing reliable detection of smoke produced by smoldering fires while keeping false alarms to a minimum. The unit also features an advanced electrochemical sensor that detects carbon monoxide leaks from multiple sources such as faulty fuel-burning appliances and blocked chimneys. This stylish smoke detector is sleekly designed to take up a fraction of the space of traditional smoke alarms, and it can be mounted unobtrusively on a wall or ceiling. A loud alarm sounds when smoke or CO is detected as well as a voice alert warning of the location and type of danger, and a convenient test/silence button lets you easily check whether the alarm is functioning and mute false alarms.
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