MSA CALIBRATION 4 GASES (LEL, O2, CO&H2S) GAS, 58L, 1.45%CH4, 15%O2, 60PPMCO, 20PPMH2S

The MSA 4-Gas Calibration Mixture (LEL, O2, CO & H2S) is a high-quality calibration gas designed to ensure accurate and reliable calibration of multi-gas detectors. This mixture contains certified concentrations of combustible gas (LEL), oxygen (O2), carbon monoxide (CO), and hydrogen sulfide (H2S), providing comprehensive calibration for a wide range of detection instruments. Packaged in a durable cylinder, it is easy to handle and ideal for industrial, laboratory, and field applications where precision, safety, and compliance are critical.