Food Science Instruments


Check It! Gas Analyzer

The F-920 Check It! Gas Analyzer is a device that rapidly measures CO2 and O2 from 0-100%. Designed for QA personnel to take precise and speedy measurements of CO2 and O2, the Check It! displays results in less than
6 seconds and has a sampling volume
of 6.5 mL. 

The Check It! CO2 / O2 gas analyzer features an intuitive user interface, and lightweight design, which makes it easy for quality control managers to take measurements straight out of the box, and virtually anywhere in the supply chain. A built-in data logger stores thousands of data points and conveniently communicates data through USB or Bluetooth onto a PC or tablet for later analysis.


  • Measures CO2 and O2 from 0-100%
  • Displays results in under 6 seconds
  • Previous records available for review on device
  • Handheld and lightweight
  • Internal data logging and storage (4GB SD card)
  • Battery lasts for 8+ hours 
  • Backlit display easily viewed in dimly lit environment
  • Functional across broad temperature and humidity range
  • Bluetooth enabled for rapid data transfer


Main Unit

Air Sampling Rate: 70mL/min

Typical Sampling Volume: 6.5 mL

Data Saving: Automated, 1 second intervals

Display: Backlit, sunlight visible transflective LCD

Operating Environment: 0º C - 45º C (0-90% humidity non-condensing)

Dimensions: 18 cm x 13.5 cm x 5.5 cm

Weight: 0.95 kg

Enclosure: Powder coated aluminum

Power Source: Removable rechargeable lithium-ion battery

PC Interface: USB and WI-FI SD card

Data Recorded with Each Measurement: CO2 and O2 Concentrations, Date,
Time, RH, GPS Location

CO2 Sensor

Sensor Type: Infrared Sensor, Pyroelectric detector

Range: 0-100%

Resolution: 0.01% absolute

Accuracy: ±1% absolute and ±3% of measured value

Sampling Time: 10 seconds

Calibration:  Annually

Lifetime: >5 years

O2 Sensor

Sensor Type: Electrochemical

Range: 0-100%

Resolution: 0.1% absolute

Accuracy: ±0.25% absolute and ±2% of measured value

Sampling Time: 10 seconds

Calibration: Bi-annually

Lifetime: 12 months


  • Headspace Sampling of Modified Atmosphere Packaging for:
    • Packing lines
    • Laboratories
    • Import/export surveys
    • Distribution centers
    • Retail centers
  • Ambient measurements and Inspection of:
    • Storage facilities
    • Ripening rooms
    • Shipping containers