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Your cart is empty.Multiple component portable calibration gas mix: 25 PPM Hydrogen Sulfide, 50 PPM Carbon Monoxide, 2.5% (50% LEL) Methane, 12% Oxygen, Balance Nitrogen in 29 Liter Aluminum Cylinder. Use to calibrate any gas detector requiring the specified gas concentration and mixture. Manufactured under ISO:9002 quality standards by NorLab Specialty Gases with NIST traceability certification.
Anthony & Genny Fonseca
Reviewed in the United States on October 3, 2018
This product worked exactly like the OEM product for a fraction of the cost.
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