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We've made it easy for you to find your equivalent calibration gas. Just enter your part number in the search box (top right of every page). Or use the filters in the left column to narrow in on your calibration gas. Save up to 50% of the cost of brand name gases. We supply identical mixtures with ISO and NIST certification.

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BW Technologies provides single and multi-gas detectors that you and your workforce can depend on.

Perform a bump test before use and BW recommends you maintain a regular calibration schedule based on your work procedures and exposure environment. At a minimum, your instrument should be calibrated at least once every 6 months.

Our replacement mixtures are manufactured to the highest industry standards and provide you with a substantial cost savings. BW equivalent gas mixtures by NorLab are available for the following devices: (Single Gas) GasAlertClip Extreme, BW Clip, GasAlert Extreme. (Multi-Gas) GasAlertMicroClip XL, GasAlertMax XT II, GasAlertMicro 5 Series, GasAlertQuattro.

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  1. BW Technologies Replacement Zero Air - 20.9% Oxygen (103 Liter)

    BW Technologies CG-ZERO Replacement Zero Air - 20.9% Oxygen (103 Liter)

    $139.00
    20.9% Oxygen (Zero Air) Calibration Gas, Balance Nitrogen, 103 Liter Steel Cylinder (BW Technologies CG-ZERO Equivalent).
  2. BW Technologies CG2-M-100-103 Replacement Calibration Gas - 100 PPM Carbon Monoxide (103 Liter)

    BW Technologies CG2-M-100-103 Replacement Calibration Gas - 100 PPM Carbon Monoxide (103 Liter)

    $145.00
    100 PPM Carbon Monoxide Calibration Gas, Balance Air, 103 Liter Steel Cylinder (BW Technologies CG2-M-100-103 Equivalent).
  3. BW Technologies CG2-IB-100-103ST Replacement Calibration Gas - 100 PPM Isobutylene (103 Liter)

    BW Technologies CG2-IB-100-103ST Replacement Calibration Gas - 100 PPM Isobutylene (103 Liter)

    $145.00
    100 PPM Isobutylene Calibration Gas, Balance Air, 103 Liter Steel Cylinder (BW Technologies CG2-IB-100-103ST Equivalent).
  4. BW Technologies G0041-M100 Replacement Calibration Gas - 100 PPM Carbon Monoxide (103 Liter)

    BW Technologies G0041-M100 Replacement Calibration Gas - 100 PPM Carbon Monoxide (103 Liter)

    $145.00
    100 PPM Carbon Monoxide Calibration Gas, Balance Nitrogen, 103 Liter Steel Cylinder (BW Technologies G0041-M100 Equivalent).
  5. BW Technologies CG-TR103-1 Replacement - 100 PPM Carbon Monoxide, 2.5% LEL Methane, 18% Oxygen, Balance Nitrogen (103L)

    BW Technologies CG-TR103-1 Replacement - 100 PPM Carbon Monoxide, 2.5% LEL Methane, 18% Oxygen, Balance Nitrogen (103L)

    $145.00
    100 PPM Carbon Monoxide, 2.5% LEL Methane, 18% Oxygen, Balance Nitrogen, 103 Liter Steel Cylinder (BW Technologies CG-TR103-1 Equivalent).
  6. BW Technologies CG2-J-2.5 Replacement Calibration Gas - 50% LEL (2.5% vol.) Methane (103 Liter)

    BW Technologies CG2-J-2.5 Replacement Calibration Gas - 50% LEL (2.5% vol.) Methane (103 Liter)

    $145.00
    50% LEL (2.5% vol.) Methane Calibration Gas, Balance Air, 103 Liter Steel Cylinder (BW Technologies CG2-J-2.5 Equivalent).
  7. BW Technologies CG2-Y-100 Replacement Calibration Gas - 100 PPM Hydrogen (103 Liter)

    BW Technologies CG2-Y-100 Replacement Calibration Gas - 100 PPM Hydrogen (103 Liter)

    $145.00
    100 PPM Hydrogen Calibration Gas, Balance Air, 103 Liter Steel Cylinder (BW Technologies CG2-Y-100 Equivalent).
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7 Item(s)