- No scheduled maintenance zirconium O2 cell and long-life CO2 sensor
- No calibration is required for oxygen
- Self-calibrating CO2 sensor
- Local backlit concentration display
- Built-in audible horn
- Built-in visual LED alarm indicators
- Alarm level 1 for CO2 / Alarm 2 for O2
- No drift due to environmental or temperature changes
- 3-year warranty
- 24V DC Power Supply Included (99039, 99122)
- International Power Supply Included (99139, 99176)
PureAire Monitoring System’s Dual Oxygen/Carbon Dioxide Monitor provides continuous monitoring of oxygen and carbon dioxide. The Monitor is ideal for use in confined spaces where low oxygen concentrations could pose a health hazard, from nitrogen gas storage sites to carbon dioxide beverage gas distribution areas.
While many dual O2/CO2 monitors rely on electrochemical sensor cells, PureAire developed its Dual O2/CO2 Monitor with a zirconium oxide and NDIR cell. This cell is impermeable to changing barometric pressure, storms, temperatures, and humidity, for reliable performance across a range of atmospheric conditions. While other units require quarterly calibration and periodic maintenance, PureAire’s Dual O2/CO2 Monitor needs no scheduled maintenance or calibration once installed. If you seek a dual O2/CO2 monitor that you can plug in, leave alone, and rely on to monitor oxygen and carbon dioxide levels, try PureAire.
One-Step Sensor Adjustment
PureAire Oxygen Deficiency Monitors require occasional testing with nitrogen to validate the sensor’s response to low oxygen levels. While calibration is not necessary for our monitors to accurately measure oxygen depletion levels1, annual fine-tuning might be needed to ensure the sensor’s span accurately corresponds to the standard 20.9% oxygen concentrations.
PureAire’s Auto-Span not only simplifies the process of adjusting the span of the oxygen sensor but also provides a quick check of the sensor and the monitor’s response to an oxygen-deficient atmosphere. With a press of a button, this feature saves you time and money, protects your facilities and employees, and, most importantly, provides you with the reassurance of consistently reliable performance, making it a valuable addition to your safety measures.
On a weekly basis, the monitor automatically recalibrates to the ambient CO2 level for reliable performance.
1Please follow your facility’s safety guidelines and state and local regulations regarding calibration requirements for safety equipment.
Plug & Play Setup
PureAire’s Dual O2/CO2 Monitor is ready to work the moment you take it out of the box and mount it. All you need to do is remove the unit, mount it to a wall or another surface, and connect the power supply to a socket. The monitor takes four minutes to start up and then begins operating automatically. Once set up, the Dual O2/CO2 Monitor provides non-stop leak detection for years. Our bumper-to-bumper warranty makes the Dual O2/CO2 Monitor the last monitor you’ll ever need to purchase.
PureAire’s Dual O2/CO2 Monitor Installations
PureAire’s Dual O2/CO2 Monitor is ideal for a range of installations. Place one in restaurants, fast food outlets, bars, and anywhere that N2 and CO2 are used to dispense carbonated beverages. Or use it in an agricultural grow room, laboratory, or other places where inert gases could pose a health hazard if a leak occurs. PureAire’s Dual O2/CO2 Monitor never drifts or loses sensitivity when weather, barometric pressure, or temperature changes, so you can rely on it to work properly at all times.
Dual O2/CO2 Monitor Control Features
PureAire’s Dual O2/CO2 Monitor comes with user-selectable relays that connect to on-off valves, which control CO2 injection and simultaneously activate alarms when oxygen levels fall below the OSHA threshold. The oxygen sensor can also check carbon dioxide levels and control nitrogen generators in hypobaric rooms. PureAire’s Dual O2/CO2 Monitor features an inexpensive monitor that has a local display, separate controls for oxygen and carbon dioxide, safety alarms, and a built-in CPU.
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