Introduction Irm300 is one of the general ndir co2 gas modules, which adopting ndir principle, consists of carefully designed light chamber, precise electric circuit and intelligent software. With the help of single light source, dual channel detector, and Unit Storage temperature Tstg -20 to 80 ¡ãc Working temperature Ta 0 to +50 ¡ãc Working humidity Ha 0 to 90 % rh Working pressure Pa 0.8 to 1.2 Atm Electric characteristics Description Symbol Min. Typical Max. Unit Supply power Vs 4.6 5 5.4 V Maximum current Imax 130 160- Ma Light current Iavg 60 70 Ma Frequency F 0.2 1 2 Hz Preheat time Twarm 90 120 180 Sec Performance characteristics Description Min Typical Max Unit Detection range 0 2000 50000 Ppm Detection accuracy - ¡¨¤60ppm¡¨¤5% fs - Ppm T90 Diffusing - 60 90 Sec Pumping - 10 20 Sec Repeatability Zero