Fyrite Classic Gas Analyzer

Testing Kit for Oxygen or Carbon Dioxide Measurement

The Bacharach Fyrite® gas analyzer is ideal for contamination tests in rooms, mines, pressurized chambers and other confined spaces. Also suitable for gas analysis of flue gases, exhaust gases of internal combustion engines, inflammable solvent fumes, and inert atmospheres.

  • Measures O2 or CO2 simply, accurately and reliably
  • Available in multiple ranges for use in a wide variety of applications
  • Suitable for flue gases, exhaust gases of internal combustion engines, inflammable solvent fumes, and inert atmospheres
  • Field-replaceable, easy-to-change fluid helps technicians keep their instrument on the job without the need for factory calibration
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The Fyrite® Classic is a tried-and-true instrument for measuring oxygen and carbon dioxide. The Fyrite® Classic is available for O2 or CO2, and each gas type of Fyrite® is available in multiple ranges to meet a variety of applications, from combustion analysis to incubators to anesthesiology.

The Fyrite® Classic contains fluid that is specifically designed to absorb O2 or CO2 with minimal cross-sensitivities to other gases, which leads to accurate readings. It is easy to test the fluid’s strength and replace it when needed – which means no need to return the unit for service and no downtime.

  • Product Specifications
  • Technical Library
  • Part Numbers
  • Accessories and Parts
  • Gas List
Measuring Range: O2: 0 to 21 and 0 to 60% CO2: 0 to 20
Resolution: 0 to 20/21% range: 0.5%, 0 to 60% range: 2%
Maximum Gas Temperature: 850 °F (454 °C)
Ambient Temperature: -30 to 150 °F (-34 to 65 °C)
Product Dimensions (L×W×H): 7.4" × 3.1" × 3.1" (18.8 × 7.9 × 7.9 cm)
Product Weight: 1.2 lb. (0.54 kg) unfilled
Expected Sensor Service Life: O2: 100 CO2: 300
Warranty: 1 Year
Country of Origin: United States
United States Part Number International Part Number O2: 0 to 21% O2: 0 to 60% CO2: 0 to 20%
0010-5011 0010-5012
0010-5000 0010-5001
0010-5020 0010-5021


All kits include:

  • Fyrite(s)® as indicated in table above

 Domestic Fyrites® are filled with fluid from the factory but international Fyrites® are not filled for export reasons. International Fyrites® must be filled using a Fyrite® fluid kit (ordered separately) before they can be used.

  • Sampling probe assembly
  • Carrying case
  • User manual
Description Part Number
Fyrite® fluid, 7.6% O2 63.5 ± 1 ml 0010-5103
Fyrite® fluid, 21/60% O2 63.5 ± 1 ml 0010-5060
Fyrite® fluid, 7.6% CO2 63.5 ± 1 ml 0010-5100
Fyrite® fluid, 20/60% CO2 63.5 ± 1 ml 0010-5057
Refill kit, 21/60% O2* 0011-7050
Refill kit, 20/60% CO2* 0011-7047
Repair kit, 0-21% O2** 0011-7054
Repair kit, 0-7.6% CO2** 0011-7053
Repair kit, 0-20% and 0-60% CO2** 0011-7052


* Refill kits (include two bottles of Fyrite® fluid, top gasket, screws and filtering material)

** Repair kits (includes one bottle of Fyrite® fluid, valve plunger gasket, top gasket, screws, diaphragm and filtering material)