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The digital CO2/Air blenders mix 100% CO2 with Air and deliver the mixed gas into the volume in which CO2 concentration must be controlled. 

The blenders feature 10 year-life Non Dispersive InfraRed (NDIR) dual wave length detector CO2 sensors and are compatible with the OKO-PUMP series for operation with background air. 

Within the operation range of each model, output flow rate can be modified as desired.


  • The digital blenders mix 100% CO2 and Air and deliver the mixed gas into the volume of interest.  
  • CO2 range: 0-15%
  • Accuracy: ± 0.1%
  • Set Point Resolution: 0.1%; Repeatability: better than 0.1
  • CO2 sensor: 10 year-life Non Dispersive InfraRed (NDIR) dual wave length detector
  • Sensor calibration against external meter or calibration gas
  • Compatible with OKO-AP line for operation with background air
  • Alarm Buzzer and External Alarm Connector
  • SDK available for integration in third party software
  • USB port for data logging
  • Operated via OKO-TOUCH 

Available Models

  • CO2-UNIT-1L (maximum output flow rate: 1 lt/min)
  • CO2-UNIT-3L (maximum output flow rate: 3 lt/min)
  • OKO-AP-1L (air pump for CO2-UNIT-1L)
  • OKO-AP-3L (air pump for CO2-UNIT-3L)