Allegro 9872-60 CO Monitor Calibration Kit (2 gases, 1 regulator, 1 tubing)
Used to check and calibrate the CO Monitor on AllegroÂ’s Carry-Air, Wall-Air or Oil-Less Compressor. Kit includes a 17 liter cylinder each of Span Gas and Zero Gas, a constant flow pressure regulator with gauge and tubing in a plastic carrying case.