OxyDetect oxygen monitor

The OxyDetect oxygen monitor is designed for operator protection applications

A life safety monitor designed for safe area or hazardous area environments, the OxyDetect delivers the superior performance of non-depleting Paramagnetic O2 sensing technology.

Innovative oxygen depletion detection from the industry leader in Paramagnetic sensing technology

The Servomex OxyDetect is a breakthrough in operator protection: now available for hazardous areas to accurately monitor oxygen (O2) levels without the sensor deterioration that affects traditional electrochemical sensors used in competitor detectors.

Designed for use in operator protection applications, the OxyDetect uses the Hummingbird Paracube® Micro Paramagnetic sensor, whose industry-leading levels of linearity, accuracy and reliability have ensured its use as a trusted O2 sensor for the OEM medical market. The OxyDetect demonstrates several advantages over traditional technologies, ensuring an unprecedented level of safety and performance as well as a lower cost of lifetime ownership.

Keith Warren
Keith Warren
Product Manager – Process Oxygen, Zirconia & Oxygen Deficiency
Man with Servomex System components

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OxyDetect benefits for life safety

The OxyDetect has a long sensor life without measurement deterioration and is suitable for indoor use in temperatures ranging from 5 to 45oC (41 to 113oF).

Advanced diagnostics

The OxyDetect’s microprocessor-based diagnostics are safe, reliable and easy to access via the front panel interface.

Non-depleting sensor

The Paramagnetic sensing technology ensures the OxyDetect is unaffected by the false readings or false alarms caused by depleting cell technologies.

Safety compliances

The OxyDetect is SIL 2 compliant for safety systems, and meets the IP66 enclosure rating for indoor use. The hazardous area version is suitable for ATEX Cat 3 and IECEx Zone 2 locations.


  • Suitable for indoor use for temperatures ranging from 41°F to 113°F (5°C to 45°C)
  • Light wall-mountable design for easy installation
  • Output range of 0-25% O2

Easy to use

  • Easy to use digital interface
  • Fault alarm via mA jam to 0mA
  • Simple integration via isolated 4-20mA output with linear measurement

Low cost of ownership

  • Non-depleting Paramagnetic design delivers long life sensor without measurement deterioration
  • Eliminates costs associated with regular replacement of E-Chem cells
  • Exceptional measurement stability eliminates need for frequent calibration

Unrivalled performance

  • Innovative life-safety performance from the industry leader in Paramagnetic sensing technology
  • Advanced Magneto-Dynamic technology delivers unprecedented performance and reliability
  • Uses advanced microprocessor- based diagnostics that are safe, reliable and easy to access

Benchmark compliance

  • IP66 (enclosure)
  • IEC 61010-1
  • SIL 2 hardware compliance, without compromising reliability (functional safety manual available)
  • CE, in compliance with Low Voltage, EMC and applicable directives

Gases sensed, measurements and technologies

The OxyDetect uses advanced digital Paramagnetic technology to ensure reliable, non-depleting sensing of oxygen in life safety applications.

Gas Measurement
Oxygen (O₂)%



Schematic (select to expand)


8.3” (210mm) W x 7.9” (200mm) H x 4.2” (106mm) D


4.4lbs (2kg)

Get the detailed specifications

“For in-depth specifications you’ll want to download our technical datasheet which includes information on technology, performance, operating environment, sample conditions and compliance along with technical drawings and top-level benefits and applications.”

Keith Warren
Keith Warren
Product Manager – Process Oxygen, Zirconia & Oxygen Deficiency

Download the OxyDetect resource pack now

“Our resource pack contains everything you need to know about the OxyDetect, including technical specifications, product benefits and available features.”

Keith Warren
Keith Warren
Product Manager – Process Oxygen, Zirconia & Oxygen Deficiency

Manuals and brochures

Download the operator manual and product brochure for the OxyDetect oxygen monitor to get more information about its features and benefits.

SERVOTOUGH OxyDetect Product brochure

SERVOTOUGH OxyDetect Product brochure

SERVOMEX OxyDetect Operator Manual

SERVOMEX OxyDetect Operator Manual

SERVOMEX OxyDetect Certification Manual

SERVOMEX OxyDetect Certification Manual

See for yourself

Our videos give you the chance to watch our products in action and hear from our experts. You can also see our analyzers unboxed, and find out more about our solutions for key applications

Unboxed: OxyDetect

Our expert Matt Halsey introduces this Paramagnetic oxygen monitor

Understanding the OxyDetect

Our experts Stephen Firth and Matt Halsey discuss the benefits of this gas detector

OxyDetect Oxygen Monitor

See the benefits of Paramagnetic sensing for on-site safety monitoring 

Typical applications

The OxyDetect is an oxygen monitor bringing non-depleting Paramagnetic sensing technology to a range of life safety applications.

Pharmaceutical plants | Helium production and storage  | Semiconductor facilities | Industrial Gas plants | ASU plants | Laboratories & Universities  | Welding facilities and workshops | Bottling plants and storage 

UHP Gases / Semiconductors

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