For best results, use only Industrial Scientific calibration equipment for regular instrument calibration and maintenance. All Industrial Scientific calibration cylinders are manufactured to the highest quality standards and include NIST traceable blend techniques, analytical leak testing of every cylinder, certified component concentrations and clearly marked lot numbers and expiration dates.
This Industrial Scientific 34 liter of 25 PPM H2S Calibration/Bump Gas can be used for the following Industrial Scientific Gas Monitors: T40 Rattler H2S, GasBadge Plus H2S, GasBadge Pro H2S, & AirAware H2S.