Make your home significantly safer in one go and protect yourself and your family with the purchase of Grundig's highly sensitive CO detector. Carbon monoxide is particularly dangerous because it cannot be seen, smelled, or tasted. 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. High-quality CO detector with LCD display. Carbon monoxide in the room is detected by the highly sensitive electrochemical sensor. The device emits a warning signal in case of sensor errors, low battery voltage, and when the gas detector needs to be replaced. Warning for low CO levels. During normal operation, the on/off indicator blinks at least once per minute. When the CO level is low, the CO alarm recognizes this and emits a beep. Even low levels of carbon monoxide can cause health issues such as headaches and nausea. If the batteries are weak or a malfunction occurs, the device will notify you. For more information, please refer to the user manual.