Kitchen, living room, bed room, hall, garage and basement all are suitable for this combination smoke carbon monoxide alarm detector.
Note:
If this carbon monoxide detectors/smoke alarm beeps continuously after a test, it means the photoelectric sensor or co sensor is still able to detect high concentrations of smoke or carbon monoxide. So, it will stop beeping when the concentration falls under warning value.
If this fire detector and carbon monoxide detector has a continuous beep after installing batteries for a long time, it may have a malfunction.
When a malfunction occurs, it is necessary to try resetting.
Resting method:
1. Remove batteries, then press the test button to discharge excess electricity, it is necessary to press the test button several times..
2. Keep holding the test button, and install batteries at the time, and you need to keep holding the test button until LED flashes, then you can release your hand. This combination smoke carbon monoxide alarm detector will return to normal.