WMA-5 CO₂ Gas Analyzer

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Product feature:

  • High precision, compact, non-dispersive infrared gas analyzer for CO2
  • Accuracy: <1 % of span concentration over calibrated range
  • CO2 ranges up to 100000 ppm (10%)
  • Automatic pressure and temperature compensation
  • Numeric and graphical display of data
  • Convenient data storage and transfer using USB flash drive
  • Operation from AC and DC power inputs
  • Large touch display with excellent readability
  • Built-in sampling pump and electronic flow sensor
  • Voltage, current and digital output
  • External water trap
  • High resolution electronic paper touch display
  • Visual and audible alarm/warnings (high and low CO2)
  • Rugged IP65 enclosure
  • Optional H2O sensor (Solid state)
  • Optional O2 sensor (Electrochemical cell)
  • Optional WiFi


The design of the WMA-5 ensures inherent calibration stability that has been confirmed by over 35 years of experience in gas analysis technology. It features a non-dispersive, infrared measurement technique coupled with microprocessor-based signal processing resulting in precise measurement of CO₂. Our innovative “Auto-Zero” technology and insulated, thermostatically controlled optical bench ensure fast warm-up, long-term stability, accuracy, and analyzer calibration. It also minimizes the effects of sample cell contamination, IR source aging, changes in detector sensitivity, and pre-amplifier gain.

The WMA-5 can be supplied with two different optical benches calibrated specifically to the range required. One bench is optimized for measurement ranges of CO₂ up to 30000 ppm and another for ranges above 30000 up to 100000 ppm. For users that want to recalibrate the gas analyzer to a new level, this can easily be achieved as long as it is within the range for that particular optical bench.

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