| Smoke and Carbon Monoxide Detector |
 This manufacturer-approved smoke and carbon monoxide detector (part number 57194) is also sold as First Alert alarm model SC07CN.The alarm requires 2 AA batteries, the first set of which are supplied with the detector. When its photoelectric sensor detects smoke, or when its chemical sensor measures a high CO concentration, the alarm issue a voice warning that includes the location of the room in which it is installed. If the batteries get low, the detector chirps, and users can test battery life and alarm function at any time by pushing a single button.No special tools are needed to install the detector. Replace the batteries at least once every 12 months. The drawer for the batteries swings out from the front of the detector. Price: 39.99 |