- No calibration is required for oxygen
- Self-calibrating CO2 sensor
- Two local backlit concentration displays – one for oxygen, the other for carbon dioxide
- Two 4-20mA output signals with dedicated circuits
- Two alarm level set-points for both O2 and CO2
- Two relays for both O2 and CO2
- No drift due to environmental or temperature changes
- No drift due to environmental or temperature changes
- 3-year warranty
- No scheduled maintenance zirconium oxide O2 cell and long-life CO2 sensor
- Built-in flow sample pump for remote sampling up to 100 feet
- NEMA 4X/IP67 Enclosure
Long-Lasting Sensors
The PureAire Water-Resistant Sample Draw Dual O2/CO2 Monitor is a compact gas monitoring system ideal for continuous monitoring of both oxygen and carbon dioxide gases. It is intended for use in nitrogen gas areas, CO2 food and beverage areas, confined spaces, and other locations where low oxygen levels and high levels of carbon dioxide may pose a hazard to personnel.
PureAire’s Water-Resistant Sample Draw Dual O2/CO2 is made with a proprietary zirconium cell and patented NDIR cell, rather than a continuously depleting electrochemical sensor cell. The zirconium cell means the monitor can provide stable oxygen and carbon dioxide readings despite changes in temperature, barometric pressure, and humidity levels.
The PureAire oxygen sensor requires no quarterly calibration or annual maintenance, and the CO2 sensor automatically adjusts to ambient levels. All you need to do is supply power to the monitor and let it run in the background—no scheduled maintenance is required!
Connects to Distributive Control Systems and Programmable Logic Controllers
The Water-Resistant Sample Draw Dual O2/CO2 can be used with PureAire’s proprietary controllers or a commonly paired accessory, the remote display. Individuals can operate the oxygen monitors remotely from as far as 3,000 feet from fire panels or programmable logic controllers.
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 or on demand, the monitor automatically adjusts to ambient CO2 levels.
1Please follow your facility’s safety guidelines and state and local regulations regarding calibration requirements for safety equipment.
Plug & Play Operation
The Water-Resistant Sample Draw Dual O2/CO2 Monitor is ready to go out of the box. To begin using it, remove it from the box and place it on a surface or mount it on the wall using the included brackets. Then, install the monitor into your facility’s power source. After a brief startup sequence, the monitor begins to operate.
PureAire’s Water-Resistant Dual O2/CO2 Monitor is designed to provide continuous, 24/7 gas leak detection for years. The Combo O2/CO2 monitor comes with a 3-year warranty and will be the last gas monitor you’ll need to purchase.
O2 Monitor System Features
PureAire uses a sophisticated built-in CPU that provides a local display, safety alarms, and control for both oxygen and carbon dioxide simultaneously.
The Water-Resistant Dual O2/CO2 Monitor has individual dedicated user-selectable relays designed to operate on-off valves to control CO2 injection in grow rooms while simultaneously activating alarms when oxygen levels drop.
