Make your home much safer in one fell swoop and protect yourself and your family by purchasing the highly sensitive CO detector from Grundig. Carbon monoxide is so dangerous because you can't smell, taste or see it. Inhaling too much of this gas can lead to unconsciousness and even death. A CO detector detects it early and warns you to avoid dangerous situations. Carbon monoxide in the room is detected by the highly sensitive electrochemical sensor. The Grundig carbon monoxide detector guarantees stable performance, high interference immunity, small size and long service life. The device gives a warning signal in the event of sensor errors, low battery voltage and when the gas detector needs to be replaced. During normal operation, the power indicator flashes at least once per minute. When the CO level is low, the CO alarm detects this and beeps. Even low levels of carbon monoxide can cause health problems such as headaches and nausea. When the batteries are low or a malfunction occurs, the device will report this. For more information, see the user manual.