Axetris’ laser gas detection modules are stand-alone, ready-to-use OEM subsystems for selective detection and monitoring of gases. The sensor is based on a technology called “TDLS” – or Tunable Diode Laser Spectrometry, which has proven its validity in high-end laboratory and process control applications. It uses a laser to scan the specific absorption lines of a target gas with an extremely high resolution, which enables a precise measurement of the gas concentration with a very high selectivity. Axetris’ proprietary approach to TDLS leverages this technology to low-cost, high-volume gas detection & monitoring applications: The use of low-cost telecom-type laser diodes as light source, combined with Axetris’ intellectual property of reference channel-free devices, reduces the gas sensor to a set of generic components and enables significant cost synergies across applications.

The LGD gas sensor technology brings a competitive solution to most of the drawbacks of current sensors:

• Extremely high selectivity to the target gas
• Functional safety, continuous status reporting
• Long lifetime (10+ years)
• Fast response times
• Low power consumption possible
• Very low cost-of-ownership (no regular replacement and/or calibration)
• Low cost of the gas sensor through excellent scaling costs of the com-ponents