4-Gas Mixture (50% LEL CH4, 50 ppm CO, 10 ppm H2S, 18% O2)

Our four gas calibration mixture consists of 50% LEL methane, 50 ppm carbon monoxide, 10 ppm hydrogen sulfide, and 18% oxygen.  The four gas calibration mixture is typically used for calibrating multi-gas meters for confined space entry.  It is NIST traceable and comes with a certificate.

SKU
4GASMIX1-34L
$195.00