DE-OX BIO Carbon Dioxide Analyzer


Carbon dioxide (CO2) is a colorless and odorless gas, that is often found in engine exhaust. The DE-OX BIO is an analyzer based on an innovative non-dispersive infrared (NDIR) temperature compensated carbon dioxide sensor. The sensor has the same shape, dimension and thread of the most common oxygen sensors. Before diving, DE-OX BIO is able to analyze the carbon dioxide content in every breathing gas mix, including air. It can be connected to a gas or diesel high or low pressure compressors for in-line continuous monitoring of gas quality.



  • Fast response
  • Small portable shell
  • Large LCD display
  • On-Off switch
  • Rugged high-impact plastic
  • Requires very little maintenance
  • Low power consumption
  • Non-dispersive infrared technology sensor
  • 50 ppm CO2 resolution on display technology
  • Low battery warning indicator
  • Easy to operate, reliable and accurate
  • Capable of shutting down compressor at set alarm with optional relays


Flow Rate 0.6-1 L/min
Resolution 50 ppm resolution from 0 to 1000 ppm, then 100 ppm up to full scale
Repeatability ± 2% of full scale @ 68°F (20°C) ambient
Linearity At ambient temperature and pressure: ± 2% FSD or ± 10% of the reading, whichever is greater
Sensor Type NDIR (Non-dispersive infrared)
Expected Sensor Life 5-10 years based on analyzer handling and use. Check sensor accuracy frequently with test gas and attempt to recalibrate if reading is inaccurate. Replace sensor if recalibration fails.
Range 0-2000 ppm
Alarms Two user-programmable audible and visual alarms
Response Time < 30 seconds @ 68°F (20°C) ambient
Operating & Storage Temperature -4° to +122°F (-20° to +50°C)
Operating Humidity 0 to 95% rh, non-condensing
Power 9 volt alkaline or lithium battery
Battery Life

Estimated 20 hours on a single lithium battery recharge

Weight 8.8 oz (250 g)
Warranty 12 months

* All specifications are at ambient/sea level, 77°F (25°C) and are subject to change without notice. Calibration must be confirmed with a calibration CO2 test gas.