This robust 4-Gas detector measures up to 4 gases simultaneously: Oxygen (O2), hydrogen sulphide (H2S), carbon monoxide (CO) and combustible gases (CH4). It was developed especially for personal protection against gas hazards and is carried at the working clothes. A large, coloured graphic display provides clear readings of all data. The display can be turned 180° by just pushing a button – this allows the display to be read easily even if the detector is carried at the belt. The zoom function allows an easy reading of single measuring values and shows additional information on the selected gas. Hands free for maximum safety.