An electromechanical alarm that saves lives by detecting carbon monoxide gas and giving a loud acoustic warning if this poisonous gas is present. The alarm is battery powered and incorporates an LCD display screen which constantly shows the current CO levels. An essential life saver needed in every household with gas or solid fuel heating. Recommended positioning, in all rooms with boilers, stoves or open fires.Apparatus: Type BvbCrLfBatteries: 3 x Alkaline AA (supplied)vbCrLfAlarm level: 85dB @ 3mvbCrLfSensor: ElectromechanicalvbCrLfOperating temperature: -10°C to 45°CvbCrLfCO alarm level: 27ppm - 55ppm: within 60 to 90 mins, 110ppm: within 10 to 40 mins, 330ppm: within 3 minsvbCrLfLifetime: 10 years from date of manufacturevbCrLfDimensions: 110 x 77 x 37mmvbCrLfWeight: 203g (incl. batteries)