The MultiRAE IR monitor uses an NDIR (non-dispersive infrared absorbance) sensor to monitor CO2. Most molecules can absorb infrared light, causing them to bend, stretch or twist. The amount of IR light absorbed is proportional to the concentration. The energy
This handbook describes the use and performance of gas detection tubes and sampling pumps manufactured by RAE Systems Inc. RAE Systems began manufacturing gas detection tubes in 1997 and is adding many new tubes to its product line each year.