Multi Calibration Gas Mix: 25 PPM Hydrogen Sulfide, 100 PPM Carbon Monoxide, 2.5% (50% LEL) Methane, 18% Oxygen, Balance Nitrogen (29 Liter)

Multi Calibration Gas Mix: 25 PPM Hydrogen Sulfide, 100 PPM Carbon Monoxide, 2.5% (50% LEL) Methane, 18% Oxygen, Balance Nitrogen (29 Liter)

0.5lpm Nickel Plated Brass Fixed Flow Calibration Gas Regulator Compatible with BW Technologies, Industrial Scientific, RAE, RKI Monitors - 0.5lpm Nickel Plated Brass Fixed Flow - C10 Fitting

BW Technologies XT-XWHM-Y-NA GasAlertMax XT II 4-Gas Detector with Pump, Combustible, O2, H2S and CO, Yellow