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.

• Brand Name: First Alert
• Power Type: Battery-Powered
• Sensor Type: Electrochemical/Photoelectric
• Product Type: Smoke and Carbon Monoxide Detector
• Batteries Included: Yes
• Low Battery Indicator: Yes
• Packaging Type: Clamshell
• Number in Package: 1 pk
• UL Listed: Yes
• Test and or Reset Button: Yes
• Replaces Ace # 5612676 (PRC700V)