Carbon monoxide detector with long-life lithium battery (lifespan 10 years), warns of increased CO concentrations in the room air. CO detector with loud 85 dB (A) /3m warning tone, control LEDs, test button and mute button. Tested and BSI-validated according to EN 50291-1:2010 + A1:2012 + EN 50291-2:2010. Includes high-quality Figaro sensor with a lifespan of 10 years (end of life is signaled acoustically). Power supply: built-in 3V lithium battery with a lifespan of 10 years with typical use. For wall mounting or for standing up (mounting accessories and stand included). Very compact, also ideal for traveling. Dimensions: 65 x 100 x 30mm.