Contact
1-888-788-8050 info@pureaire.net
Search icon
Account
Login Create account
Cart icon 0
Search icon Account Cart icon 0
Back
Sample Draw Oxygen Depletion Monitor with built-in pump for remote oxygen sensing by PureAire 99029 Drawing scaled remote display wiring D with parts Rev D 82521
Sample Draw Oxygen Detector with 10+ Year Sensor
Sample Draw Oxygen Detector with 10+ Year Sensor
Sample Draw Oxygen Depletion Monitor with built-in pump for remote oxygen sensing by PureAire
Search icon

Sample Draw Oxygen Detector with 10+ Year Sensor

Available Product Options. Please choose from the menu below | In stock

$3,020.00 – $3,745.00

Product Summary

PureAire’s Sample Draw Oxygen Monitor is the ideal choice for remote oxygen monitoring in confined spaces, storage areas, and other hard-to-access locations. Equipped with a built-in pump, the system can draw air samples from up to 100 feet away, making it perfect for environments where direct sensor placement isn’t feasible.

Designed for use in facilities that handle inert gases such as nitrogen, helium, or argon, this monitor is well-suited for MRI rooms, food and beverage production areas, laboratories, cryogenic storage, and other oxygen-sensitive locations.
Built to perform in extreme conditions, the monitor remains accurate at temperatures as low as -40°C. Its core is PureAire’s advanced zirconium oxide sensor, which operates continuously for 10+ years without requiring replacement or routine scheduled maintenance, delivering long-term reliability with minimal maintenance. See MRI  Video

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 Zirconium Sensor –  10+ years average sensor life
  • No scheduled maintenance required
  • 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, CUL Approvals
  • 24V DC Power supply included

Reliable and Maintenance-Free Sample Draw Oxygen Depletion Monitor

As a trusted manufacturer of Sample Draw Oxygen Monitor, we are committed to delivering performance, reliability, and long-term value. Our Sample Draw Oxygen Depletion Monitors feature a non-depleting zirconium oxide sensor that operates continuously for over 10 years, without the need for replacement parts, scheduled maintenance, or hidden costs.

Designed for environments where oxygen displacement is a risk, these monitors are ideal for laboratories, cryogenic chambers, hyperbaric chambers, MRI rooms, and freezers. They effectively detect leaks from inert gases such as nitrogen, helium, and argon.

Each unit includes built-in visual and audible alarms for immediate notification and can also be integrated with existing fire alarm systems for broader facility alert coverage.

Engineered for simplicity, the Sample Draw Monitor is easy to install, requires no calibration, and features onboard watchdog software that continuously verifies operational integrity. Immune to fluctuations in barometric pressure, humidity, and temperature, this monitor offers a dependable, cost-effective solution for critical oxygen safety.

 

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.
Optional
 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 US (P/N # 99196)
Horn and Strobe  US (P/N # 42002)
Remote Display US (P/N # 99091) for 0 – 25% or US (P/N # 99186) for 0 – 95%

Connects to Distributive Control Systems and Programmable Logic Controllers 

The PureAire O2 Sample Draw Monitor can be used with PureAire’s proprietary controllers, either single or multichannel. Dual selectable alarm relays activate strobe lights and remote horns to alert staff to the hazard. Individuals can operate the oxygen monitors remotely from up to 1,000 meters (0.6 miles) away using the centralized control systems.

Better Oxygen Sensor Cell

Unlike other oxygen monitors, PureAire’s O2 Deficiency Sample Draw Monitor is built with a zirconium oxide sensor cell. This sensor requires no reference gas and performs reliably in 100 percent nitrogen environments. 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.

One-Step Sensor Adjustment

PureAire Oxygen Deficiency Monitors require periodic nitrogen testing 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.

1Please follow your facility’s safety guidelines and state and local regulations regarding calibration requirements for safety equipment.

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 5.07 

99092 Sample Draw Oxygen Monitor – NO Pump Literature

99092 Sample Draw Oxygen Monitor – NO Pump Manual

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

MRI Installation PDF 2025

MRI Installation Guide PDF 2025

 

Remote Digital Display p/n 99091

Horn/strobe 24VDC Red p/n 42002

horn and strobe

CloudConnect 

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

Replacement Filter p/n 90115

How to Stay Safe in a MRI Room with Use of an Oxygen Deficiency Monitor
How to Stay Safe in a MRI Room with Use of an Oxygen Deficiency Monitor
Monitor From Afar

Built-in pump draws samples from up to 100 feet when direct sensor placement isn’t feasible.

Confined-Space Ready

Ideal for inert-gas areas such as MRI rooms, labs, cryogenic storage, and production spaces.

Long-Life Sensor

Zirconium oxide sensor operates 10+ years with no replacement or regular calibration in normal conditions.

Oxygen deprivation is a silent killer. Oxygen-depleting gases, such as nitrogen, argon, and helium, are odorless and colorless, making leaks impossible to detect, unless appropriate monitoring is in place.

PureAire oxygen deficiency monitors can be used to monitor nitrogen, argon, and helium. Carbon dioxide can also be monitored with PureAire’s dual oxygen/carbon dioxide monitor.

PureAire uses a proprietary, non-depleting, zirconium oxide sensor that will last up to 10 years in a normal environment without needing to be replaced.

PureAire’s sensors do not operate under partial pressure, meaning that a PureAire sensor will not need to be adjusted to account for different elevations. Additionally, the sensors will not drift due to changes in barometric pressure.

In contrast, other gas detection companies use depleting, electrochemical sensors. These sensors, because they are depleting, operate for 1-2 years before needing to be replaced. Electrochemical sensors do not offer long-term solutions to companies committed to safety.

PureAire sensors are built to last 10 years. Often, the sensors work much longer. In fact, some of our first customers who started using PureAire products in 1997 report that the sensors are still in operation today.

On the other hand, an oxygen monitor that uses a depleting, electrochemical sensor is like a battery in that, as the sensor depletes, it begins to lose its power and responsiveness. In order to operate accurately, electrochemical sensors must be calibrated frequently.

PureAire sensors are made of non-depleting zirconium oxide, and calibration is typically not required.

However, a visual check of the monitor should be done once a year to verify that the sensor is functioning properly, and span adjustments should be done, as necessary. The sensor requires periodic testing with nitrogen to verify the sensor’s response to low oxygen levels.

In contrast, electrochemical sensors, because they deplete over time, will need to be calibrated every 2-3 months and totally replaced every 1-2 years.

Switching to a PureAire non-depleting, zirconium oxide sensor will save you time and money, while ensuring the safety of your workers and facility.

Electrochemical sensors offered by other gas detection companies lose accuracy over time and must be calibrated. Calibration recharges and resets the monitor to get an accurate reading. It is important to note that an electrochemical sensor can only be calibrated a finite number of times before it must be discarded.

PureAire’s non-depleting zirconium oxide sensor will not experience drift. Oxygen sensors from PureAire will provide long-lasting, reliable, and accurate monitoring for an average of10+ years.

The oxygen monitor covers an area of approximately 692 square feet when mounted on a wall and should be placed no more than 21 feet from potential leak sources such as gas lines, gas cylinders, or any areas where a gas leak might be expected to occur.

To ensure safety, the maximum distance between two monitors mounted to the same wall, should not exceed 30 feet. However, since cryogenic gases, such as argon, helium, and nitrogen, are unpredictable, we encourage you to contact PureAire for additional guidance specific to your needs.

In most circumstances, PureAire recommends that oxygen monitors be installed 3-5 feet away from gas cylinders or cryogenic gas lines. To enable employees to see the monitor display and verify its performance, PureAire recommends mounting an oxygen monitor 3-5 feet off the ground.

There are other options for mounting an oxygen monitor. For instance, PureAire sensors can sample the air from up to 100 feet away, or be installed within a glovebox, freezer, sealed chamber, or even underground. PureAire monitors can also work in environments that require KF-25 flanges, as well as in nitrogen/argon enriched environments.

PureAire’s Sample Draw Monitors pull a sample flow at a rate of 250 ccs per minute. We recommend using 1/4” OD x 3/16” ID polypropylene sample tubing. Using this internal tubing dimension, to calculate transport (response) time, add 2 seconds per foot of sample tubing. For example, if the sample tube is 10 feet long, the initial response time would be 20 seconds (10ft x 2seconds=20seconds) at 15 feet the response time would be 30 seconds (15ft x 2seconds=30seconds), etc.

The response time when using the entire 100 feet of sample tube will take 3.5 minutes (100ft x 2seconds=200seconds or 3.5minutes) for the sample to reach the monitor.