About ENVEA TDL Sensors

Every day, our mission is to deliver world-class laser gas monitoring systems at a competive price
— Robert Holdsworth, GM, TDL Sensors

ENVEA TDL Sensors was founded in 1999 and spun out of the Department of Chemical Engineering, University of Manchester, to develop a tunable diode laser based gas analysers.  In the following years, ENVEA TDL Sensors have developed measurement solutions for the glass coating industry, ultra-harsh processes, enclosed atmospheres for the protection of personnel, air quality monitoring and for the oil and gas industries. 

In 2016, we became part of the ENVEA Group of companies.  ENVEA is a leader in the field of continuous environmental pollution analysis systems.

Using laser absorption spectroscopy ENVEA TDL Sensors can measure the gases that are important to your process, application or, even, your and your co-workers well-being and safety. Small gas phase molecules, including oxygen (O2), carbon monoxide (CO), carbon dioxide (CO2), moisture (H2O), hydrogen chloride (HCl), ammonia (NH3), hydrogen fluoride (HF) and methane (CH4), can all be measured at rates of up to 10 Hz to provide rapid, real-time monitoring.

As laser absorption spectroscopy is a high-resolution technique, and our laser wavelengths are carefully selected, the measurements are specific and free from interfering background gases, which is often a major limitation of other gas measurement techniques. 

We continue to enhance our measurement technology and increase the range of gas monitoring applications through innovation and collaboration.
— Dr David Meehan, Senior Technical Lead

Our analysers are simple to set up and have an easy to use interface so that the user can be collecting data almost immediately.  There is no need for carrier gases or consumables and, consequentially, our laser gas monitors have a low cost of ownership and require little maintenance.


Advantages of tunable laser gas monitors:


No calibration

Rapid measurements

No moving parts

Low maintenance

Low cost of ownership