Altair 2X single-component manual gas detector for personal monitoring. - Can be used to measure CO, H2S, SO2, NO2, CL2, NH3 gases - If the operation check is successful: green LED flashes every 15 seconds - If the operation check is unsuccessful or expired: red LED flashes every 15 seconds - For the long life of the sensors and accurate, fast response , the most reliable one-two-component instrument in the segment - Gives a warning and alarm when the sensor has reached the end of its life - Strong injection-molded housing with rubber inserts - Drop test from a height of 7.5 meters - Certified dust and water resistance with IP67 construction - Non-sparking, safe design - Large LCD, characters and status icons