Gas Clip Calibration Gas

Gas Clip's Calibration Gas is NIST traceable gas for use during calibrating your monitors with the SGC Dock or the MGC Dock manually. This standard quad gas mixture contains H2S/25 ppm, CO/100 ppm, O2/18% vol, and CH4/2.5% col. (50% LEL). Choose from 58 or 116 liter bottles.