Welcome to Cal Gas Direct

Cal Gas Direct is an authorized supplier of precision, Calgaz NIST-traceable Fire Department Calibration Gas standards engineered for frontline apparatus bays, fire investigation units, and municipal HazMat response teams. From validating primary multi-gas meters to performing routine bump tests on dedicated toxic overhaul sniffers, our portable cylinders deliver certified span accuracy to keep life-safety instruments operating within strict NFPA and OSHA compliance parameters.