CH4 2.5% (50% LEL)

Hydrogen Sulfide (H₂S) 5 PPM / Carbon Monoxide (CO) 100 PPM /Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 20.9% / Nitrogen BAL Calibration Gas – 66L – Custom Mix

Low H2S 4 Gas Calibration Gas – 66L Cylinder This custom four-gas calibration mixture is engineered for detectors requiring low hydrogen sulfide verification levels. The reduced 5 ppm H₂S concentration allows confirmation of sensor sensitivity...

Hydrogen Sulfide (H₂S) 50 PPM / Carbon Monoxide (CO) 100 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 20.9% / Nitrogen BAL Calibration Gas – 116L – Custom Mix

Custom 4 Gas H2S CO CH4 O2 Calibration Gas – 116L Cylinder This custom four-gas calibration mixture is produced to match specific detector sensor configurations and alarm setpoints. The standard atmospheric oxygen concentration allows verification...

Hydrogen Sulfide (H₂S) 50 PPM / Carbon Monoxide (CO) 100 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 20.9% / Nitrogen BAL Calibration Gas – 34L

4 Gas H2S CO CH4 O2 Calibration Gas – 34L Cylinder This compact four-gas calibration mixture is designed for routine detector verification where normal oxygen levels are required. It confirms toxic and combustible sensor response without...

Hydrogen Sulfide (H₂S) 50 PPM / Carbon Monoxide (CO) 100 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 20.9% / Nitrogen BAL Calibration Gas – 44L

4 Gas H2S CO CH4 O2 Calibration Gas – 44L Cylinder This four-gas calibration mixture is intended for routine detector verification in normal oxygen environments. It confirms sensor response across toxic and combustible channels without triggering...

Hydrogen Sulfide (H₂S) 50 PPM / Carbon Monoxide (CO) 100 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 20.9% / Nitrogen BAL Calibration Gas – 66L

4 Gas H2S CO CH4 O2 Calibration Gas – 66L Cylinder This four-gas calibration mixture is designed for routine detector verification under normal atmospheric oxygen conditions. It allows technicians to confirm toxic and combustible sensor response...

Hydrogen Sulfide (H₂S) 50 PPM / Carbon Monoxide (CO) 100 PPM / Methane (CH₄) 2.5% (50% LEL)/ Oxygen (O₂) 20.9% / Nitrogen BAL Calibration Gas – 60L

4 Gas H2S CO CH4 O2 Calibration Gas – 60L Cylinder This four-gas calibration mixture is designed for routine detector verification in normal oxygen environments. It confirms toxic and combustible sensor response while maintaining a realistic...

Hydrogen Sulfide (H₂S) 50 PPM / Carbon Monoxide (CO) 100 PPM /Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 20.9% / Nitrogen BAL Calibration Gas – 120L

4 Gas H2S CO CH4 O2 Calibration Gas – 120L Cylinder This four-gas calibration mixture is intended for routine bump testing where detectors must be verified without simulating oxygen-deficient atmospheres. The normal atmospheric oxygen level allows...

Hydrogen Sulfide (H₂S) 50 PPM / Carbon Monoxide (CO) 30 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 12.0% / Nitrogen BAL Calibration Gas – 116L

4 Gas H2S CO CH4 O2 Calibration Gas – 116L Cylinder This four-gas calibration mixture confirms detector response where reduced oxygen levels and lower carbon monoxide alarm thresholds must activate reliably. The 116L cylinder supports daily...

Hydrogen Sulfide (H₂S) 50 PPM / Carbon Monoxide (CO) 30 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 12.0% / Nitrogen BAL Calibration Gas – 120L

4 Gas H2S CO CH4 O2 Calibration Gas – 120L Cylinder This four-gas calibration mixture allows technicians to validate detector response where reduced oxygen levels and lower carbon monoxide alarm thresholds must activate reliably. The large 120L...

Hydrogen Sulfide (H₂S) 50 PPM / Carbon Monoxide (CO) 30 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 12.0% / Nitrogen BAL Calibration Gas – 34L

4 Gas H2S CO CH4 O2 Calibration Gas – 34L Cylinder This four-gas calibration mixture is designed for verifying detector response where oxygen deficiency and lower carbon monoxide alarm thresholds must activate reliably. The compact 34L cylinder...

Hydrogen Sulfide (H₂S) 50 PPM / Carbon Monoxide (CO) 30 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 12.0% / Nitrogen BAL Calibration Gas – 44L

4 Gas H2S CO CH4 O2 Calibration Gas – 44L Cylinder This four-gas calibration mixture is designed to confirm detector response where reduced oxygen and lower carbon monoxide alarm thresholds must activate reliably. The compact 44L cylinder supports...

Hydrogen Sulfide (H₂S) 50 PPM / Carbon Monoxide (CO) 30 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 12.0% / Nitrogen BAL Calibration Gas – 60L

4 Gas H2S CO CH4 O2 Calibration Gas – 60L Cylinder This four-gas calibration mixture verifies detector response where reduced oxygen levels and lower carbon monoxide alarm thresholds must be confirmed together. The portable 60L cylinder supports...