Product Description Item Number | 1810-9192 Concentration: 100 ppm CO, 25 ppm H2S, 18% O2, 50% LEL CH4 Methane (2.5% vol) Industrial Scientific 34 liter Combination Calibration Gas for the following Industrial Scientific Gas Monitors that are equipped with LEL (Methane), O2, CO, H2S sensors; Ventis MX4, iQuad MX4, M40, MX6, iTX.Each cylinder comes with its own smart card for connecting to the DS2 Docking Station & iGas Regulators.Concentration: 100 ppm CO, 25 ppm H2S, 18% O2, 50% LEL Methane (2.5% vol)Regulators sold separately.
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