- Air Check O2 Oxygen Deficiency Monitor for CO2, N2 Storage Areas



The Air check O2 Oxygen Deficiency Monitor for CO2, N2 Storage Areas is a compact gas monitoring system that’s ideal for the continuous monitoring of CO2 or nitrogen inert gas storage areas, freezers, confined spaces, and other locations where low oxygen levels may pose a hazard to personnel. Unlike continuously depleting electrochemical sensor cells, the Air check O2 zirconium cell provides stable oxygen readings even in areas where temperature, barometric pressure and humidity levels are changing. The Air check oxygen sensor requires no quarterly calibration or annual maintenance. Just plug it in and leave it alone.

  • No Maintenance Zirconium Cell
  • 10 + year Sensor Life
  • No Calibration Required
  • No Disposable Cells to Purchase
  • Local Back Lit Concentration Display
  • Built-in Audible Alarm
  • No Drift Due to Environmental or Temperature Changes
  • Operates in Freezers at - 40 ºF
  • Integral Computer Controlled Electronics

No Disposable Cells to Replace
The heart of the monitoring system is a long lasting zirconium sensor, which responds to low oxygen conditions within seconds and provides accurate measurements over a wide temperature and humidity range. The zirconium O2 sensor cell will operate continuously for 10 or more years and requires an absolute minimum of maintenance. There are no zero or span calibration pots to adjust and when compared to disposable type sensors, our long life zirconium O2 sensor can save up to $475 annually and will pay for itself in just over 2 years! Ideal for continuously monitoring oxygen levels in confined spaces or basement areas where CO2 and nitrogen inert gas is stored, the Air check O2 sensor does not drift or loose sensitivity. When levels reach the OSHA action level of 19.5 %, the built-in horn activates to warn employees of a hazardous situation. All system electronics are continuously supervised and any faults are automatically detected and displayed on the gas concentration display.

No Calibration Required
The Air check O2 Deficiency Monitor does not require quarterly calibration. The earth is a wonderful source of calibrated oxygen, and under ambient levels PureAire’s O2 monitor is continuously being challenged to 20.9 %. There are no zero or span adjustments to make or expensive maintenance people to hire.

Plug & Play Operation
The Air check O2 Deficiency Monitor is ready to go right out of the box. Just mount it to wall or other surface and plug in the power supply, (included) into any wall socket. After a 4-minute start-up sequence, the monitor automatically starts operating. It’s designed for unattended supervised 24/7 leak detection for years. Supplied with a full 3-year warranty, the Air check O2 will be the last monitor you’ll need to purchase.

PureAire’s Oxygen Monitor Installations
The Air check O2 Deficiency Monitor is used in restaurants where CO2 and nitrogen are used to dispense beverages, Tire sales and repair centers to protect employees when filling tires with nitrogen, MRI facilities to protect against helium leaks used to cool the magnets, and Food processing facilities to alert personnel of nitrogen leaks from freezer tunnels. PureAire’s Air check O2 continuous monitor can provide comfort in protecting your employees from entering potentially hazardous situations if a leak occurs.

O2 Monitor System Features
The Air check O2 Deficiency Monitor is available in many different configurations. PureAire uses a sophisticated built-in CPU that is flexible to provide users with an inexpensive monitor with local display and alarm. We can also provide a full-featured monitor with dual level, user selectable alarm relays with hysteresis for controlling CO2 and nitrogen supply valves.

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