Article number: 8712412579600 View all from ALECTO > View more: CO Meters > Carbon monoxide detector without display This carbon monoxide (CO) detector measures and monitors the CO concentration, and therefore the air quality in the room. The meter works on batteries (3x AA, included). The detector warns immediately when CO is present. The detector sounds an alarm when the carbon monoxide concentration is too high, but the detector also warns at lower values ​​so that you can take action to improve the air quality. Lifespan of 10 years Works on supplied batteries (3x AA) Alarm (>85dB) in case of excessively high CO concentration Warns of risky CO concentration The carbon monoxide detector clearly indicates what is going on via sound and lights (for example when the batteries are empty or when the lifespan of the sensor ends after 10 years) Supplied with base plate, screws and plugs for quick and easy installation on the wall Including manual in NL / EN / DE / FR Dimensions: 75 x 106 x 35 mm Product specifications Carbon monoxide detector - Without display Article description Carbon monoxide detector Article number 8712412579600 Version Without display Country of origin China Measuring carbon monoxide Carbon monoxide detectors display the concentration of carbon monoxide in ppm. Ppm stands for parts per million, or the number of particles in 1 million particles. By law, CO detectors are required to sound an alarm when a detected concentration of carbon monoxide is 50 ppm or more for 60 minutes. Even when you are asleep, an alarm of >85dB will not go unnoticed. A long-term presence of a lower concentration of CO is also harmful to health. This carbon monoxide detector already gives a warning when a concentration of 30 ppm is detected for 60 minutes.