CH4 2.5% (50% LEL)

Hydrogen Sulfide (H₂S) 40 PPM / Carbon Monoxide (CO) 100 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 15.0% / Nitrogen BAL Calibration Gas – 66L

Deficiency Alarm Simulation Calibration Gas – 66L Cylinder This calibration mixture is designed to confirm detector performance in environments where oxygen levels may fall below safe breathing thresholds. The 15.0% oxygen concentration triggers...

Hydrogen Sulfide (H₂S) 40 PPM / Carbon Monoxide (CO) 100 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 19.0% / Nitrogen BAL Calibration Gas – 120L

High Capacity Confined Space Calibration Gas – 120L Cylinder This reduced-oxygen calibration mixture is used by facilities that perform frequent monitor verification and need extended service intervals between cylinder replacement. The 19.0%...

Hydrogen Sulfide (H₂S) 40 PPM / Carbon Monoxide (CO) 100 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 19.0% / Nitrogen BAL Calibration Gas – 34L

Compact Confined Space Calibration Gas – 34L Cylinder This reduced-oxygen calibration mixture is used when technicians need to confirm monitor readiness immediately before entry into potentially hazardous environments. The 19.0% oxygen level...

Hydrogen Sulfide (H₂S) 40 PPM / Carbon Monoxide (CO) 100 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 19.0% / Nitrogen BAL Calibration Gas – 44L

Portable Confined Space Calibration Gas – 44L Cylinder This reduced-oxygen calibration mixture verifies detector readiness where atmospheric safety cannot be assumed. The 19.0% oxygen concentration confirms deficiency alarm performance while toxic...

Hydrogen Sulfide (H₂S) 40 PPM / Carbon Monoxide (CO) 100 PPM / Methane (CH₄) 50% LEL / Oxygen (O₂) 19.0% / Nitrogen BAL Calibration Gas – 66L

Low Oxygen Four Gas Calibration Gas – 66L Cylinder This calibration mixture is engineered for environments where oxygen deficiency detection must be verified alongside toxic and combustible hazards. The reduced 19.0% oxygen level allows...

Hydrogen Sulfide (H₂S) 40 PPM / Carbon Monoxide (CO) 200 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 20.9% / Nitrogen BAL Calibration Gas – 120L

High CO 4 Gas Calibration Gas – 120L Cylinder This large-volume four-gas calibration mixture supports ongoing detector maintenance where elevated carbon monoxide alarm setpoints must be validated alongside hydrogen sulfide and combustible channels...

Hydrogen Sulfide (H₂S) 40 PPM / Carbon Monoxide (CO) 200 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 20.9% / Nitrogen BAL Calibration Gas – 34L

High CO 4 Gas Calibration Gas – 34L Cylinder This four-gas calibration mixture verifies detector response at elevated carbon monoxide alarm thresholds while confirming hydrogen sulfide and combustible channels under normal atmospheric oxygen...

Hydrogen Sulfide (H₂S) 40 PPM / Carbon Monoxide (CO) 200 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 20.9% / Nitrogen BAL Calibration Gas – 44L

High CO 4 Gas Calibration Gas – 44L Cylinder This four-gas calibration mixture is designed to validate elevated carbon monoxide alarm thresholds while confirming hydrogen sulfide and combustible sensor response under normal atmospheric oxygen...

Hydrogen Sulfide (H₂S) 40 PPM / Carbon Monoxide (CO) 200 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 20.9% / Nitrogen BAL Calibration Gas – 66L

High CO 4 Gas Calibration Gas – 66L Cylinder This four-gas calibration mixture is designed to confirm detector response at elevated carbon monoxide alarm levels while validating hydrogen sulfide and combustible channels under normal atmospheric...

Hydrogen Sulfide (H₂S) 40 PPM / Carbon Monoxide (CO) 200 PPM / Methane (CH₄) 2.5% (50% LEL)/ Oxygen (O₂) 20.9% / Nitrogen BAL Calibration Gas – 116L

High CO Four Gas Calibration Gas – 116L Cylinder This multi-gas calibration cylinder verifies detector performance where elevated carbon monoxide thresholds must be confirmed along with hydrogen sulfide, combustible gas, and oxygen channels in...

Hydrogen Sulfide (H₂S) 5 PPM / Carbon Monoxide (CO) 100 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 20.9% / Nitrogen BAL Calibration Gas – 116L – Custom Mix

Low H2S 4 Gas Calibration Gas – 116L Cylinder This custom four-gas calibration mixture confirms detector sensitivity at low hydrogen sulfide concentrations while validating carbon monoxide and combustible sensor response under normal atmospheric...

Hydrogen Sulfide (H₂S) 5 PPM / Carbon Monoxide (CO) 100 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 20.9% / Nitrogen BAL Calibration Gas – 34L – Custom Mix

Low H2S 4 Gas Calibration Gas – 34L Cylinder This custom four-gas calibration mixture verifies detector response at very low hydrogen sulfide levels. The 5 ppm H₂S concentration confirms early sensor activation while carbon monoxide and...