Nitrous Oxide Gas Detectors (N2O)

Nitrous Oxide Gas Detector Solutions by International Gas Detectors Ltd.

Nitrous Oxide Gas Detectors from International Gas Detectors – We can provide the worlds most reliable and accurate fixed N2O gas detector in the form of our TOC-750S Aspirated detector. With the 750S enhanced zero stability, you can achieve stable alarms as low as 25ppm.

It is important for many industries to have accurate and fast detection for nitrous oxide to avoid the gas reaching dangerous toxic levels.

Designed specifically for the detection of nitrous oxide. Our nitrous oxide gas detector range includes:

Occupational Exposure Levels



(Short Term exposure Limit – 15mins)

TWA: 100ppm

(Time Weighted Average – 8hrs)

Alarm Recommendations

Rising Latching Alarms for Life Safety Applications


First Alarm


Second Alarm


Third Alarm


Nitrous Oxide (N2O)

Nitrous Oxide or N2O is also known as ‘laughing gas’ due to its euphoric effect when inhaled. It is commonly used as an anaesthetic or analgesic gas in surgery and dentistry. N2O is an oxide of Nitrogen and is also used as an oxidiser in rockets and to increase power output when injected into internal combustion engines. At high temperatures N2O is a powerful oxidiser similar to molecular Oxygen. The gases euphoric effect has also led to its recreational use in some quarters. Following this, it is also difficult to monitor for N2O. However we have a the perfect solution for your nitrous oxide detector.

N2O As a Pollutant:

Nitrous Oxide in combination with Oxygen reacts to Nitric Oxide (NO) which in turn reacts with Ozone, it is one of the main naturally occurring regulators of Stratospheric Ozone. Over a 100 year period it is up to 310 times the global warming impact of Carbon Dioxide (CO2). This makes it a major air pollutant and greenhouse gas.

Nitrous Oxide is also approved as a food additive (E942). It’s most common use in the food industry is as a propellant in whipped cream, fat sprays and packaging for snacks such as crisps. In food packaging applications N2O inhibits bacterial growth.

Health Effects:

The major safety hazards of Nitrous Oxide come from the fact that it is a compressed liquefied gas, an asphyxiation risk, and a dissociative anaesthetic.

Exposure to N2O causes short-term decreases in the following:

  • mental performance
  • audiovisual ability
  • manual dexterity. 

Abusing the gas  can lead to oxygen deprivation resulting in loss of blood pressure, fainting and even heart attacks.

N2O Detectors - BOC Projects Team - Testimonial

N2O Gas Detection - Testimonial

“IGD were thoroughly prefessional throughout the procurement, design and installation phases of this project. The interfaces provided, resulted in a smooth operation at all intersections. Their N2O 750S aspirated detector is perfect and provides a reliable stable reading for nitrous oxide.

A special mention to Csenge, their service coordinator, who ensured all safe systems of work were in place before the installation team reported to site. As someone who works with a lot of contractors, half the battle is ensuring that the site are happy with work taking place.

In addition the installation team themselves worked efficiently and most importable safely.

I look forward to working with the IGD team in the future.”

Testimonial From BOC, in regards to a project we completed for N2O Gas Detection Monitoring.

Long-term exposure can cause vitamin B12 deficiency, numbness, reproductive side effects (in pregnant females). The National Institute for Occupational Safety and Health (USA)recommends that workers’ exposure to N2O should be controlled during the administration of anaesthetic gas in medical, dental, and veterinary operators. The UK sets the long term exposure limit (8hrs) at 100ppm.

Nitrous Oxide Detector Solutions

Since Nitrous Oxide (N2O) is a difficult gas in itself to monitor for, here at IGD we have come up with an innovative approach to be able to get constant reliable reading. Our ground breaking 2-Wire Addressable Sampler is the perfect solution to detect and monitor for N2O. The Sampler only has 1 channel allowing for continuous monitoring, plus as a unique feature where the sampler will automatically zero itself at prescribed times. This makes for reliable readings/monitoring of N2O, making it the perfect nitrous oxide detector. Coupled with our 2-Wire Technology, you have a fully networked, addressable detector, controlled via our Apps, and only utilising two core cables for power and communication.

nitrous oxide detector

Pictured: Our 750S Aspirated (sampler) addressable gas detector. The perfect solution for monitoring Nitrous Oxide (N2O).


This saves you up to 70-80% on installation costs compared to current basic addressable and legacy analogue systems. Giving you a future proof and intelligent gas detection system at the fraction of the cost and reduced maintenance compared to the current industry standard. Get in touch today to discuss your nitrous oxide detector requirements.

Clients & Applications We Have Supplied N2O Gas Detection to:

  • Coventry University
  • BOC UK/ Linde
  • Manchester University
  • Semiconductor chips
  • Dental practices and hospital wards

Email us at to learn more about how IGD ground breaking Samplers can help with your N2O monitoring. Or give us a quick call, to discuss how IGD’s ground breaking systems can help you.

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