News Blog

ET remain exclusive UK & Ireland distributor for Met One Instruments

ET remain exclusive UK & Ireland distributors for Met One Instruments

Following the recent acquisition of Met One Instruments by the ACOEM Group, we can confirm that Enviro Technology Services Ltd remain the exclusive distributor for Met One Instruments products and spare parts in the UK and Ireland.

You can read the official statement here.

ET gain ground in Scotland with prominent tender win for Glasgow City Council.

Glasgow Service Contract

Back in March 2020 our sales and service departments started work on a tender for prospective new customer for ET – Glasgow City Council. 

Fast forward 18 months and we find out we’ve won the contract!

The award, for the service and maintenance of seven air quality stations under a 3 +1 year agreement plus the sale of a T200 chemiluminescence NOx analyser, has a further option for a BAM 1020 PM Coarse to provide continuous PM2.5, PM10 and PM10-2.5 measurements.

As a new contract customer for ET, our Customer Services Manager Mike Smith, an ex-pat Scot himself says he is “delighted that Glasgow CC have entrusted ET with the service and maintenance requirements of their air quality monitoring stations. Service and support will routinely be provided by our Scottish Regional Instrument and Air Conditioning Engineer operating from ET’s premises in Fife, but supporting him will be the largest team of regional engineers in the business. I’m sure therefore that Glasgow CC will be impressed with the quality of our service.”

Glasgow pexels ratworks media 387232 copy

ET enjoys a level of normality as the end of the year sees a return to some live conferences and exhibitions.

Exhibition logos

The last quarter of the year is always a busy period for ET’s sales and marketing department with a host of specialist air quality related conferences to attend. Following a quiet year for exhibitions in 2020, in the latter part of 2021 we are really pleased to be able to go back to at least partial normality by attending some live events again. These were mixed in with some virtual events where circumstances dictated that proceeding online was the safer option for all those involved.

Here are some of our 2021 conference highlights:

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ET attends Race to Zero events and COP26 Gloucestershire ahead of COP26.

Race to Zero UWE

Never one to miss out on an opportunity to spread the word about the importance air quality has on climate change, the Smogmobile has been lucky to visit two of our local Planet Mark Zero Carbon Tour events last month.

These events which were running the breadth of the UK aimed to support businesses in reaching net zero carbon emissions no matter where they are at on their journey, in the run up to COP26 in Glasgow in early November.

At these events, workshops were run to help businesses feel confident in their first steps towards a net zero commitment by identifying the businesses main emission sources and ways to cut them.

The first event we attended was at UWE Frenchay Campus in Bristol at their impressive modern facility.

ET were happy to get involved when contacted by James Longhurst, Professor of Environmental Science and Assistant Vice Chancellor for Environment and Sustainability at UWE. The Smogmobile monitored air quality next to the zero carbon bus throughout the event and attracted some interest.

Wide angle view at UWE of tour bus and Smogmobile copy2

We then joined the Planet Mark team at another of their tour stops at the University of Gloucester in Cheltenham where ET MD, Duncan Mounsor added his own message to the leaders of COP26 when asked “What is your message to the leaders at COP26 for a brighter future?” 

His response – 

“Poor air quality kills >40,000 people in the UK every year and millions worldwide. Most air pollution is caused by combustion of fossil fuel. Reduce combustion emissions = Reduce poor air quality”

We also attended COP26 Gloucestershire - a fringe event at the Active Building Centre in Berkeley where they discussed issues ranging from leadership on the green agenda, the role of the public sector in reaching net zero, to the need for green skills, and how the UK’s construction industry needs to adapt or wither.

COP26 Glos banner

COP26 Glos conf copy

Accurately monitor methane emissions with highly sensitive portable and rackmount analysers from ABB / LGR.

Methane analysers

Methane (CH4) is a relatively prominent component of the atmosphere, with a global average concentration of 1.8 parts-per-million, a 2.5-fold increase since pre-industrial levels. The processes involved in the release, transportation, and removal of methane from Earth’s atmosphere are complex, and form an important part of the global carbon cycle.

Methane can be a direct hazard in situations where workers and local residents are at danger of elevated levels causing combustion, but more pressing concerns are attributed to methane’s significant contribution to global warming. As a potent greenhouse gas, methane is very effective at trapping heat. Methane eventually breaks down naturally in the troposphere, yielding CO2 and water vapour, both of which also contribute to the greenhouse effect.

In addition to its climate impacts, methane also affects air quality because it is an ingredient in the formation of ground level (tropospheric) ozone, a dangerous air pollutant.

Considering all these factors, having the capability to accurately measure CH4 has never been more important.

Luckily, Enviro Technology are able to provide a wide variety of CH4 instrumentation to suit almost any application.

Our suite of ABB-LGR Off-AXIS ICOS (Integrated Cavity Output Spectroscopy) analysers allow for extreme sensitivity whilst being rugged, and insensitive to temperature changes, shocks, and vibration. Additionally, the optics can also be easily serviced without any special tools or training.

Suited to any application, the Off-AXIS ICOS analyser range come in four configurations:

• Microportable

• Ultraportable

• Rackmount

• Enhanced performance rackmount

Ideal for, but not limited to, field studies such as:

• Soil flux measurements

• Greenhouse gas monitoring

• Natural gas leak detection

ABB / LGR microportable, Ultraportable, rackmount and enhanced rackmount analysers are available in the UK and Ireland from Enviro Technology Services Ltd.

More information on methane, the importance of measuring it and our range of methane analysers, can be found on our Methane air pollution factsheet here.

Methane image

Alternatively, if you’d like to speak to a specialist about your exact requirements, call ET on 01453 733200.

ET launches US gas analyser giant, Teledyne API’s new range of N-series analysers to the UK market at Routes to Clean Air.


ET are pleased to offer to the UK and Ireland market, the latest range of continuous gas analysers from US manufacturers of precision air quality and industrial gas monitoring instrumentation, Teledyne API.

N200 with ET logo at angle copy

At this year's Routes to Clean Air conference in Bristol our team were delighted to be able to display an N200 Chemiluminescence NOx/NO2/NO analyser on the stand.

Our long-standing relationship with Teledyne API dates back over 30 years. ET’s proud to say it’s a relationship built on trust, success and a common goal; ‘to provide the most reliable and best value-for-money gas analysers on the market, and to support them for life’

ET can confirm the N-series product line has been successfully designed to meet the expected rigorous demands of a reference method analyser with a simplified and maintenance-friendly architecture to ensure ease of use.

Power saving

As well as improved reliability and enhanced diagnostic features, real world test results show the new N Series platform makes the same precise measurements whilst offering considerable power savings (compared to T-series instruments) thanks to an all-new DC architecture.

Intuitive operation 

All N-series products achieve intuitive operation and calibration through the NumaView™ Software interface which also allows access to the instrument’s large internal data storage buffer from a remote PC or tablet.

The customisable graphical user interface (GUI) gives the user fast and efficient access to instrument status whilst allowing the user to control what they see and what it brings to their attention as well as measurement data and diagnostic parameters in either numeric or graphical form.


N-series instruments are reliable and accurate, providing high data quality with low cost of ownership. This can be achieved with the complete range of Teledyne API ambient air quality monitoring instruments, which are backed by a standard 2-year warranty.

Further benefits:

•  Established supplier with over 30 years industry experience.

•  2-year standard manufacturer’s warranty.

•  Instruments widely used in over 110 countries.

•  Exceptional product and application technical support.

•  A stringent Quality Management System that conforms to the requirements of ISO 9001:2015.

•  Leading-edge technology combined with proven measuring principles and dedicated after-sales support.


The TAPI N-series range is pending TuV and MCERTS approval.

For more information on any of the N-series instruments from Teledyne API available from Enviro Technology Services (Official distributors for Teledyne products in the UK & Ireland) on 01453 733200 or email or via our website

ET's manager for Scientific Applications puts our new demo Optical Extinct Analyser through it's paces!

Optical Extinction Analyser

We are excited to have received our demo Optical Extinction Analyser from new partners Nikira Labs in California. UK Sales Manager for Scientific Applications Lewis John has been putting this new instrument through its paces in Manchester in anticipation of customer demonstrations.

Lewis was impressed by the ease of use and portability of the OEA, and we expect this innovative new way of measuring optical extinction and aerosol optical depth will garner a lot of interest. With cavity ring-down based technology built into a small, <8kg package, the Nikira Labs is sure to be of interest to field-based researchers!

OEA small Manchester 2

Optical extinction and aerosol optical depth are not only key measurement parameters for meteorologists, airports etc., these measurements also tie into and support measurements of airbourne particulate concentration, and air pollution models. Optical extinction is somewhat under-reported in the UK, but we hope the availability of a cutting-edge instrument like the Nikira Labs OEA will catalyse research into this important atmospheric parameter. 

Contact ET for information on 01453 733200  or email us at

Christmas has come early with 10% off Zephyr Air Quality Sensors until October 29th 2021!

Zephyr Promotion October 2021

That's right, ET are knocking 10% off Zephyr Air Quality Sensors sales throughout October 2021.

The offer is valid for the first 100 units sold up to and including October 29th.

To learn more about the Zephyr Air Quality Sensor see our product page here.

Contact ET today to claim your 10% discount.

01453 733200

Superior service and expertise help ET retain prestigious Greater Manchester contract.

PR5 Enclosure

Stroud based air quality monitoring equipment and service contract provider, Enviro Technology Services (ET), are both proud and delighted to have retained the Greater Manchester Air Quality Network (GMAQN) yet again, following on from a recent tender exercise.

The GMAQN currently comprises of 20 real-time monitoring stations on what is, one of the largest regional metropolitan networks in England. The monitoring stations, located in Wigan, Trafford, Tameside, Stockport, Salford, Rochdale, Oldham, Manchester, Bury and Bolton are all professionally serviced, maintained, and supported by ET.

The unification and harmonisation of the AQM stations operated by the various Greater Manchester local authorities began in 2013 with the birth of the GMAQN, and ET is proud to have been involved with this network since its inception.

ET has a proven track record over the years, providing the network with excellent all-round service and support and consistently high data capture rates.

ET’s Managing Director, Duncan Mounsor concludes “we are extremely proud to continue our association with the GMAQN and our retention of this contract truly does reflect our commitment to quality and focus on superior customer service. I’m also as ever, thankful to our customer support admin team and of course our team of service engineers, especially our regionally based engineers in the Greater Manchester and surrounding areas”.

PR5 Enclosure with 2 x BAMs and 1 NOx Manchester

Where’s My Data?

Data grapgh

Somewhere, in an innocuous looking, typically green, roadside enclosure near you, instruments will be humming away, sucking in ambient air, analysing it and recording data - day and night, week after week, year after year. But nobody is interested in that, are they? Just as long as the data keeps flowing.

Meanwhile, miles away in an office somewhere and with coffee in hand, you or your data manager, sit in front of a computer screen, browse to a website and review a graph or numbers in a table – or maybe instead of a website, a few additional keystrokes result in those hidden instruments being interrogated remotely. Either way, your air quality data appears onscreen and its looking good. You smile and move on to your next task of the day.

Combined Graph fro CS blog

But what will you do if one day, like a tap running dry, your vital data suddenly stops streaming in? Who would be the first to notice? You? Your community? Local activists? What would they have to say if the outage wasn’t resolved immediately? Suppose it happened during a high pollution incident - in a location of significant community interest? Would they think you’re hiding something? How difficult could they make things for you?

The instrumentation supplying your air quality data is very likely, right at the back of your mind. As long as the data streams in reliably and continuously, there’s no reason to give them any consideration, is there? But when the tap turns off, the screen goes blank and the phone starts ringing, where do you turn?

ET sees air quality monitoring from a different perspective. We understand that when you buy air quality monitoring instruments or a service and maintenance contract from us, you’re actually buying data and peace of mind. This is why we only supply the best, most reliable and independently certified instruments; fully supported by a regionally-based team of factory-trained service engineers with over 250 years of collective experience.

We know that if you get the basics right, your data will be too. So, if you’ve invested in proven, certified, monitoring equipment, your defensible data will not only keep flowing but if the worst should happen and the data tap turns off, your service and maintenance contract with ET means that you simply pick up the phone or drop us an email and an ET expert will be there to turn it on again.

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