
Development and manufacture of custom gas sensors and gas analyzers (OEM) based on laser detection technology, made in Germany.

KNESTEL Technologie & Elektronik GmbH – Marke TRACE-GAS
Osterwalder Straße 12, 87496 Hopferbach (Bad Grönenbach)New on Amplifa
About TRACE-GAS
TRACE-GAS is the gas analysis brand of KNESTEL Technologie & Elektronik GmbH, headquartered in Hopferbach (Bad Grönenbach), Germany. The company develops and manufactures custom sensors and analyzers for high-resolution gas analysis, including measurement devices based on laser absorption spectroscopy (LAS/TDLAS), photoacoustic spectroscopy (PAS), chemiluminescence detection (CLD), NDIR, NDUV and flame ionization detection (FID). Products include the MultiLAS gas analyzer and the CLDmini for highly sensitive TNb analyses; detection limits down to 100 ppb are stated. The offering comprises ready-made analyzers as well as OEM sensors and customer-specific solutions. Customer industries include environmental monitoring and indoor air monitoring, the chemical industry, medicine and healthcare (e.g. plasma disinfection), as well as OEM customers. With around 40 years of experience, the company is based in the Allgäu region and sells its measurement technology worldwide.
- Site
- Hopferbach (Bad Grönenbach)
- Processes
- Laser Absorption Spectroscopy (LAS/TDLAS), Photoacoustic Spectroscopy (PAS), Chemiluminescence Detector (CLD), NDIR – Non Dispersive Infrared Sensor, NDUV – Non Dispersive Ultraviolet Spectroscopy, Flame Ionization Detector (FID), Development of custom gas sensors and gas analyzers (OEM), Gas analysis with detection limit down to 100 ppb
- Materials
- Laser Absorption Spectroscopy (LAS/TDLAS), Photoacoustic Spectroscopy (PAS), Chemiluminescence Detector (CLD), NDIR – Non Dispersive Infrared Sensor, NDUV – Non Dispersive Ultraviolet Spectroscopy, Flame Ionization Detector (FID)
- Certificates
- Certifications
- Industries
- Environmental monitoring / Indoor air monitoring, Chemical industry, Medicine/Healthcare, OEM customers, Measurement technology, Medicine/Healthcare (plasma disinfection, indoor air monitoring)
- 01
Engineering and development of custom sensor solutions
- 02
Manufacturing and assembly of sensors and analyzers
- 03
Testing and calibration of measurement technology
- 04
Sales and partnerships
Technologies and Measurement Methods
Laser Absorption Spectroscopy (LAS/TDLAS)
Optical measurement method for highly sensitive trace gas analysis.
Photoacoustic Spectroscopy (PAS)
Acousto-optic method for gas analysis, among other things for compact OEM sensors.
Chemiluminescence Detector (CLD)
Highly sensitive detection, e.g. for TNb analyses in the compact CLDmini format.
NDIR – Non Dispersive Infrared Sensor
Infrared measurement method for gas analysis in industrial applications.
NDUV – Non Dispersive Ultraviolet Spectroscopy
Ultraviolet measurement method, among other things for gas sensing for plasma disinfection and indoor air monitoring.
Flame Ionization Detector (FID)
Method for detecting hydrocarbon-containing gases.
Locations

Hopferbach (Bad Grönenbach)
DEDevelopment, Manufacturing and Sales
Products and Analyzers




Inside the production


Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Laser Absorption Spectroscopy (LAS/TDLAS)Testing | – | – | – | – | – |
| Photoacoustic Spectroscopy (PAS)Testing | – | – | – | – | – |
| Chemiluminescence Detector (CLD)Testing | – | – | – | – | – |
| NDIR – Non Dispersive Infrared SensorTesting | – | – | – | – | – |
| NDUV – Non Dispersive Ultraviolet SpectroscopyTesting | – | – | – | – | – |
| Flame Ionization Detector (FID)Testing | – | – | – | – | – |
| Development of custom gas sensors and gas analyzers (OEM)Engineering | – | – | – | – | – |
| Gas analysis with detection limit down to 100 ppbTesting | Detection limit down to 100 ppb | – | – | – | – |
Additional services
Quality
According to the company, the measurement technology is manufactured with high precision and quality; detection limits down to 100 ppb are specified. Certifications are not published.
| Evidence | Hopferbach (Bad Grönenbach) |
|---|---|
| Certifications |
History
- 2025
Introduction of the MultiLAS gas analyzer (September 2025) and the gas sensing technology for plasma disinfection (July 2025); presentation of the CLDmini for TNb analyses (January 2025)