pure aire

Product Summary

Item # 99118

Our Air Check O2 sample draw monitor is a specialized version of our oxygen deficiency monitor perfect for situations where the monitor may be exposed to water or wash downs. The monitor can reside up to 100ft away from the area to be tested and uses a polyurethane or equivalent 1/4 inch tube to draw the sample. For a sterile environment, this monitor is the solution. This has a 10+ year zirconium oxide sensor.

  • 10 + Years No Calibration Sensor
  • IP67
  • Two-Alarm Relays for 19.5% and 18.0%
  • No Maintenance Required
  • 3 Year Warranty
  • Digital Display, 4-20mA Analog Output
  • No drift due to thunderstorms or barometric pressure changes
  • Wall mounting brackets and optional plug-in wall power supply
  • Built-in Flow Sample Pump
  • UL, C UL and CE Approvals
  • Long Last Zirconium Sensor

Long Lasting Zirconium Sensor

As a leading manufacturer of oxygen monitors, PureAire Monitoring Systems puts performance, reliability, and affordability first. Our oxygen monitors last for 10+ years with no replacement, no maintenance, and no hidden costs.

These monitors work well anywhere gas leaks would cause oxygen depletion, including in  food and beverage, bottling plants,  flash freezing tunnels, laboratories, manufacturing facilities, and freezers. Our monitors have a long-lasting zirconium oxide sensor, which delivers reliable monitoring against leaks of argon, helium, and nitrogen for 10 years. The device has its own audible and visual alarm, but it can be connected to fire alarm systems to amplify the reach.

The O2 monitor is easy to set up, easy to operate, and requires no calibration once installed. Supervised watchdog software checks that everything is working properly and notifies you of any inconsistencies on the monitor. Immune to performance changes from barometric pressure drops, humidity, and temperature, these monitors are reliable and cost-effective.

Sampling MethodSample Draw for Splash Down Areas
Gases DetectedOxygen (O2)
Range0 – 25 %
Accuracy± 1 % of Full Scale
Operating Temperature-40 to +55 ºC
Display3/4″ LCD Digital Display, Back Lit
Sensor TypeLong life zirconium oxide sensor cell
Sensor Life> 10 years under Normal Conditions
Signal Outputs4-20 mA Analog Output
Dual Level Alarm Relay Contacts
Built in Horn
Power Requirements24 VDC 300 mA
Width7.25 in
184.2 mm
Height6.0 in
152.4 mm
Depth5.0 in
127 mm
Weight4.0 lb
2.0 kg
EnclosurePolycarbonate IP67
Required CalibrationNone
No Zero or Span Pot Adjustment Required
OptionalAvailable without Horn. Contact PureAire for details.


1 Not intended for explosive atmospheres

Connects to Distributive Control Systems and Programmable Logic Controllers

The Air Check O2 Sample Draw Monitor can be used with PureAire’s proprietary controllers, either single or multichannel. Dual selectable alarm relays set off strobe lights and remote horns, so that staff can learn of the hazard. Individuals can operate the oxygen monitors remotely by as much as 1,000 meters or 0.6 miles from the centralized control systems.

Better Oxygen Sensor Cell

Unlike other oxygen monitors, PureAire’s Air Check O2 Deficiency Monitor relies upon a Current Limiting Zirconium Oxide Oxygen sensor. This sensor does not need a reference gas and can perform reliably in environments that contain 100 percent nitrogen. The sensitive monitor can tell oxygen levels by percentages, so it can operate in lower-temperature environments than the more frequently used concentration-type cells. The improved cell helps PureAire sensor’s last for 10+ years.

Once set up, the Air Check O2 Deficiency Monitor performs reliably with no concentration. The earth provides natural calibrated oxygen, which keeps the O2 monitor challenged to 10.9 percent. Enjoy consistent oxygen monitoring with no adjustments. For peace of mind, test the unit’s response by subjecting the system to nitrogen periodically.

O2 Monitor System Features

PureAire offers its Air Check O2 Deficiency Monitor in multiple configurations. Every unit comes with a choice of low-cost basic display monitor or full featured, dual level monitor with user selectable alarm relays. When built-in alarm relays are used, the sensor continuously monitors electronics, sensors cell, and sample flows. Any faulty information is provided to the front panel LED, mA output, and alarm relay, for instant notification.

Request a Free Assessment

Find out how Purity can help your business reduce costs & create a safer working environment.