Sample Draw Oxygen Detector with 10+ Year Sensor

Sample Draw Oxygen Detector with 10+ Year Sensor

Item #: 99029 (IN-STOCK)


Product Summary

The Sample Draw Oxygen Deficiency Monitor is perfect for storage areas, confined spaces, and other locations where remote oxygen monitoring is required. The built-in pump samples oxygen levels from up to 100 feet away and is suitable for facilities that use inert gases including, but not limited to, nitrogen, helium, and argon. The monitor is ideal for environments such as MRI facilities, cryogenic spas, hospitals, freezers, and laboratories. The monitor will remain accurate at temperatures as low as -40C. PureAire’s durable, non-depleting, zirconium oxide sensor will last 10+ years in a normal environment, without needing to be replaced.

We can ship next day with orders placed by Noon CST
Quantities less than 10 pieces ship next day. Estimated lead times do not include weekends or holidays. Transit time is determined by shipping method and destination. Orders requiring credit information might take additional time.
Two-Year Extended Warranty Available for this product in the US, Canada, and Mexico
  • Long-Life 10+ years average sensor life
  • No calibration sensor
  • Two, user-adjustable, alarm relay setpoints are available or alarm defaults are set to 19.5% and 18.0%
  • Built-in audible alarm 90dB (99029, 99129, 99059, 99092)
  • 3-year warranty
  • Digital display
  • 4-20mA analog output (Active)
  • No drift due to thunderstorms or barometric pressure changes
  • Wall mounting brackets
  • Built-in Flow Sample Pump (99019, 99029, 99059, 99060, 99129, 99130)
  • UL, C, UL, and CE Approvals
  • 24V DC Power supply included

Long Last Zirconium Sensor

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

These monitors work well anywhere gas leaks would cause oxygen depletion, including in laboratories, cryogenics chambers, hyperbaric chambers, 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 Method Sample Draw
Gases Detected Oxygen (O2)
Range 0 – 25 % or 0 – 95%
Accuracy Delivers ±0.2% O2 accuracy (± 1 % of full range)
Operating Temperature -40º to 140ºF (-40º to 60ºC)
Display 3/4″ LCD Digital Display, Back Lit
Sensor Type Long-life zirconium oxide sensor cell
Sensor Life > 10 years under Normal Conditions
Signal Outputs 4-20 mA Analog Output (Active)
Dual-Level Alarm Relay Contacts
Built-in Horn
Power Requirements 24 VDC
300 mA
Width 7.25 in
184.2 mm
Height 6.0 in
152.4 mm
Depth 5.0 in
127 mm
Weight 2.4 lb
1.2 kg
Enclosure1 Polycarbonate
Calibration Calibration is not required.
Periodic span adjustment as needed.
Available without Horn. Contact PureAire for details.
Country of Origin USA
Harmonized Tariff Code 8531.10.0045

1 Not intended for explosive atmospheres


Additional O2 Monitor Accessories List Price
8 Channel Controller $3,355US (P/N # 99196)
Horn and Strobe  $190.00 US (P/N # 42002)
Remote Display $435.00 US (P/N # 99091) for 0 – 25% or $435.00 US (P/N # 99186) for 0 – 95%

Connects to Distributive Control Systems and Programmable Logic Controllers 

The AirCheck 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 AirCheck O2 Deficiency Monitor is built with a zirconium oxide sensor cell. This sensor does not need a reference gas and can perform reliably in environments that contain 100 percent nitrogen. The sensitive monitor reads oxygen levels in percentages, so it can operate in lower-temperature environments than the more frequently used concentration-type cells. The improved cell enables PureAire sensors to last 10+ years.

While other oxygen deficiency monitors may require semi-annual (or even more frequent) tune-ups to work properly, PureAire’s line of Oxygen Deficiency Monitors provides constant monitoring, with no calibration required. Only a simple, periodic span adjustment may be necessary. For peace of mind, test the unit’s response by subjecting the system to nitrogen periodically. This saves our customers time and money, protects their facilities and employees, and provides them the comfort that comes from consistently reliable performance.

O2 Monitor System Features

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

Sample Oxygen Monitor Literature

O2 Sample Draw Monitor Manual – Rev 5.05 (Post Summer 2023)

99092 Sample Draw Oxygen Monitor – NO Pump Literature

Safety Risks of Oxygen Deficiency

NIH – Protocol for Use & Maintenance of Oxygen Monitoring Devices 2021

Sample Draw Oxygen Monitor into horn/strobe or remote display

How to Install Oxygen Monitor in MRI Room- Contractor Drawing

SAM Case Drawing

Price Savings for PureAire Sensor vs Disposable Sensors

Data logging Test Results for O2 Sensor

MRI Installation Photo 1

MRI Photo Basic Install with Waveguide

Oxygen Monitor Sales Presentation

Remote Digital Display p/n 99091

Horn/strobe 24VDC Red p/n 42002

horn and strobe


8-Channel Programmable Controller for Oxygen, Carbon Dioxide, or Toxic/Combustible Gas Monitors

Replacement Filter p/n 90115