Enviro Technology Services (ET) is now rebranded as Cura Terrae.
NOx analyser
20th February 2017

Enviro Technology introduces ground-breaking NOx analyser

Duncan Mounsor
Duncan Mounsor Products & Applications Consultant

ET is delighted to announce the launch of a revolutionary new non-chemiluminescent NOx analyser from analyser giant Teledyne-API.

The new Model N500 CAPS NOx analyser uses superior Cavity Attenuated Phase Shift (CAPS) Spectroscopy to measure ‘true’ NO2, NOx, and NO gases. CAPS technology is inherently accurate and sensitive, uses very little power, and requires far less maintenance than chemiluminescence. The Model N500 raises the bar for NO2, NOx, and NO measurement accuracy while simultaneously reducing instrument operation and maintenance costs.

Teledyne-API’s first direct true NO2 analyser, the T500U has been a popular instrument for ET, particularly favoured by scientists and air quality specialists looking for a faster and more precise measurement of NO2 that cannot be offered by chemiluminescence. The new Model N500, like the T500U, uses CAPS technology for true NO2 measurement but now adds on to this by measuring the NO component of NOx. This really is a revolutionary instrument, and we are very excited to be able to start offering it to our clients.

Duncan Mounsor Managing Director

Like all Teledyne-API gas analysers, the new Model N500 CAPS NOx / NO2 / NO analyser is available exclusively in the UK and Ireland through Enviro Technology Services Ltd.

Cura Terrae X Gasera

Cura Terrae now official UK & Ireland distributor of Gasera gas analysers

14th April 2026

The Cura Terrae Air division announce a new partnership with Gasera, to bring their exciting range of single and multi-gas analysers to the UK and Ireland. 

Cura Terrae logo placeholder image
Cura Terrae Comms Team
Black smoke

Clean Air Night Initiative to Shine Spotlight on Black Carbon Pollution

26th January 2026

A new initiative taking place this winter aims to raise awareness of black carbon pollution and the impact of wood smoke on air quality across London. 

Roisin Campbell
Roisin Campbell Content Manager
Forest fire from above

This summer’s wildfires severely degraded air quality

16th September 2025

With many wildfires burning across the world this summer, we look at the effects they have on air quality.

Elspeth Rider
Elspeth Rider Copywriter