Calibration Gases

Apollo Safety offers a wide range of NIST traceable calibration gases for all calibration needs.

Ammonia (NH3) Available in 10, 25, 100, 200 PPM

Carbon Monoxide (CO) Available in 25, 50, 100, 300, 500 PPM

Chlorine (CL2) Available in 2, 5, 10 PPM

Hydrogen (H2) Availble in 10% LEL, 50 % LEL

Hydrogen Sulfide (H2S)

Hydrogen Cyanide (HCN)

Methane (CH4) Available in 5% LEL, 10% LEL, 50% LEL and 99.9%/Vol

Nitrogen (N2) Available in in 99.9% / Vol

Sulfur Dioxide (SO2) Available in 5 , 10 PPM

Silane (SiH4) Available in 5, 10 PPM

Hexane15% / LEL

Many other concentrations and custom calibration mixtures also available. 

Call toll-free 800-813-5408 to speak with one of our gas detection experts.

Prices are subject to change without notice due to ongoing tariff adjustments and market conditions. For the most accurate and up-to-date pricing, please contact us directly.

Cal kit, GW2, 34L cyl CO / N2, reg with gauge & knob, cal cup, case & tubing SKU: 81-GW2C-LV Price: $300.00 In Stock	Cal kit, GX-2001/GX-2009, 103L steel cyl Methane/CO/O2, reg with gauge & knob, cal cap, case & tubing SKU: 81-GX01CO Price: $385.00 In Stock
Cal kit, GX-2001/GX-2009, 34AL cyl H2S/N2, reg with gauge & knob, cal cap, case & tubing SKU: 81-GX01HSO2-LV Price: $375.00 In Stock	Cal kit, GX-2001/GX-2009, 34AL cyl Isobutane/H2S/CO/O2, reg with gauge & knob, cal cap, case & tubing SKU: 81-GX01HCOIB-LV Price: $410.00 In Stock
Cal kit, GX-2001/GX-2009, 34AL cyl Methane/H2S/CO/O2, reg with gauge & knob, cal cap, case & tubing SKU: 81-GX01HSCO-LV Price: $410.00 In Stock	Cal kit, GX-2001/GX-2009, 34L cyl Hexane/O2/H2S/CO/N2, reg with gauge & knob, cal cap, case & tubing SKU: 81-GX01HXCO-LV Price: $410.00 In Stock
Cal kit, GX-2001/GX-2009, 34L cyl Isobutane/air, 34L cyl 100% N2, reg with gauge & knob, cal cap, case & tubing SKU: 81-GX01IB-LV Price: $350.00 In Stock	Cal kit, GX-2001/GX-2009, 34L cyl Methane/CO/O2, reg with gauge & knob, cal cap, case & tubing SKU: 81-GX01CO-LV Price: $295.00 In Stock
Cal kit, GX-2001/GX-2009, 58AL cyl Methane/H2S/CO/O2, reg with gauge & knob, cal cap, case & tubing SKU: 81-GX01HSCO Price: $430.00 In Stock	Cal kit, GX-2003/GX-2012, 103L steel cyl CO/CH4/O2 in N2, dem flow reg, case & tubing SKU: 81-GX03CO Price: $480.00 In Stock
Cal kit, GX-2003/GX-2012, 34AL cyl H2S (25 ppm)/CO/CH4/O2, 58L cyl 100% vol. CH4, 1 dem flow reg, case & tubing SKU: 81-GX03VHSCODLV Price: $655.00 In Stock	Cal kit, GX-2003/GX-2012, 34AL cyl H2S (25 ppm)/CO/CH4/O2, 58L cyl 100% vol. CH4, reg with gauge & knob, disp valve, gas bag, case & tubing SKU: 81-GX03VHSCO-LV Price: $580.00 In Stock
Cal kit, GX-2003/GX-2012, 34AL cyl H2S (25 ppm)/CO/CH4/O2, dem flow reg, case & tubing SKU: 81-GX03HSCO-DLV Price: $500.00 In Stock	Cal kit, GX-2003/GX-2012, 34AL cyl H2S (25 ppm)/CO/CH4/O2, reg with gauge & knob, gas bag, case & tubing SKU: 81-GX03HSCO-LV Price: $420.00 In Stock
Cal kit, GX-2003/GX-2012, 34L cyl CO/CH4/O2 in N2, dispensing valve, gas bag, case & tubing SKU: 81-GX03CO-LV Price: $210.00 In Stock	Cal kit, GX-2003/GX-2012, 34L cyl CO/CH4/O2, 58L 100% vol CH4, dem flow reg, case & tubing SKU: 81-GX03VCO-DLV Price: $635.00 In Stock
Cal kit, GX-2003/GX-2012, 34L cyl CO/CH4/O2, dem flow reg, case & tubing SKU: 81-GX03CO-DLV Price: $435.00 In Stock	Cal kit, GX-2003/GX-2012, 58AL cyl H2S (25 ppm)/CO/CH4/O2, 58L 100% vol. CH4, dem flow reg, case & tubing SKU: 81-GX03VHSCO Price: $680.00 In Stock
Cal kit, GX-2003/GX-2012, 58AL cyl H2S (25 ppm)/CO/CH4/O2, dem flow reg, case & tubing SKU: 81-GX03HSCO Price: $520.00 In Stock	Cal kit, GX-2009 MSHA, 34AL cyl Methane/NO2/CO/O2, reg with gauge & knob, cal cap, case & tubing SKU: 81-GX09CONO2-LV Price: $505.00 In Stock
Cal kit, GX-2009 MSHA, 58AL cyl Methane/NO2/CO/O2, reg with gauge & knob, cal cap, case & tubing SKU: 81-GX09CONO2 Price: $565.00 In Stock	Cal kit, GX-2012, 34L cyl CO/CH4/O2, 34L 50% vol CH4, dem flow reg, case & tubing SKU: 81-GX12VCO-DLV Price: $490.00 In Stock
Cal kit, GX-3R or GX-3R Pro, 103L steel cyl CO 50 ppm / CH4 50% LEL / O2 12% in N2, regulator 0.25 LPM, case & tubing SKU: 81-GX3RCO Price: $370.00 In Stock	Cal kit, GX-3R or GX-3R Pro, 116AL cyl H2S 25 ppm / CO 50 ppm / CH4 50% LEL / O2 12% in N2, regulator 0.25 LPM, case & tubing SKU: 81-GX3RHSCO-116 Price: $545.00 In Stock
Cal kit, GX-3R or GX-3R Pro, 34AL cyl H2S 25 ppm / CO 50 ppm / CH4 50% LEL / O2 12% in N2, regulator 0.25 LPM, case & tubing SKU: 81-GX3RHSCO-LV Price: $390.00 In Stock	Cal kit, GX-3R or GX-3R Pro, 34AL cyl H2S 25 ppm / CO 50 ppm / Propane 50% LEL / O2 12% in N2, regulator 0.25 LPM, case & tubing SKU: 81-GX3RHSCOP-LV Price: $410.00 In Stock
Cal kit, GX-3R or GX-3R Pro, 34L cyl CO 50 ppm / CH4 50% LEL / O2 12% in N2, regulator 0.25 LPM, case & tubing SKU: 81-GX3RCO-LV Price: $280.00 In Stock	Cal kit, GX-3R or GX-3R Pro, 34L steel cyl H2 50% LEL in air, 34L steel cyl N2 100%, regulator with 0.25 LPM, case & tubing SKU: 81-GX3RO2H2-LV Price: $335.00 In Stock
Cal kit, GX-3R or GX-3R Pro, 58AL cyl H2S 25 ppm / CO 50 ppm / CH4 50% LEL / O2 12% in N2, regulator 0.25 LPM, case & tubing SKU: 81-GX3RHSCO Price: $410.00 In Stock	Cal kit, GX-3R Pro, 103L steel cyl 10% CO2 in N2, regulator 0.25 LPM, case & tubing SKU: 81-PXB Price: $370.00 In Stock
Cal kit, GX-3R Pro, 103L steel cyl 5,000 ppm CO2 in N2, 103L cyl 100% N2, regulator 0.25 LPM, case & tubing SKU: 81-PPA Price: $525.00 In Stock	Cal kit, GX-3R Pro, 34AL cyl H2S 25 ppm / CO 50 ppm / CH4 50% LEL / O2 12% in N2, 103L cyl H2 2000 ppm in air, regulator 0.25 LPM, case & tubing SKU: 81-PCX-LV Price: $535.00 In Stock
Cal kit, GX-3R Pro, 34AL cyl H2S 25 ppm / CO 50 ppm / CH4 50% LEL / O2 12% in N2, 34AL cyl 10 ppm HCN in N2, regulator 0.25 LPM, case & tubing SKU: 81-PAE-LV Price: $715.00 In Stock	Cal kit, GX-3R Pro, 34AL cyl H2S 25 ppm / CO 50 ppm / CH4 50% LEL / O2 12% in N2, 34L cyl 2.5% vol CO2 in N2, two regulators 0.25 LPM, case & tubing SKU: 81-PAB-LV Price: $535.00 In Stock
Cal kit, GX-3R Pro, 34AL cyl H2S 25 ppm / CO 50 ppm / CH4 50% LEL / O2 12% in N2, 34L cyl 5,000 ppm CO2 in N2, two regulators 0.25 LPM, case & tubing SKU: 81-PAA-LV Price: $585.00 In Stock	Cal kit, GX-3R Pro, 34AL cyl H2S 25 ppm/CO 50 ppm/isobutane 50% LEL/O2 12% in N2, regulator with .25 LPM, case & tubing SKU: 81-PAX-IBLV Price: $390.00 In Stock
Cal kit, GX-3R Pro, 34AL cyl NO2 10 ppm/CO 50 ppm/O2 12% in N2 (7 month shelf life), regulator with .25 LPM, case & tubing SKU: 81-PED-LV Price: $450.00 In Stock	Cal kit, GX-3R Pro, 34AL cyl SO2 5 ppm / H2S 25 ppm / CO 50 ppm / CH4 50% LEL / O2 12% in N2, regulator 0.25 LPM, case & tubing SKU: 81-PAC-LV Price: $420.00 In Stock
Cal kit, GX-3R Pro, 34L cyl 5,000 ppm CO2 in N2, 34L cyl 100% N2, regulator 0.25 LPM, case & tubing SKU: 81-PPA-LV Price: $335.00 In Stock	Cal kit, GX-3R Pro, 34L cyl 50% LEL CH4/CO 50 ppm/O2 12% in N2, 34AL 25 ppm NH3 in N2, regulator with .25 LPM, case & tubing SKU: 81-PEG-LV Price: $660.00 In Stock