Bieler+Lang Gas Detection and Warning Systems

Bieler+Lang Gas Detection and Warning Systems - Your partner for industrial safety systems.

There are many areas with a risk of dangerous or explosive gases and vapors. We help you protect people, the environment and equipment against serious and costly damage. Our products have been providing reliable early warning of gas accidents and explosions for over 40 years. Bieler+Lang gas detection and warning systems are designed specifically for these applications. Renowned companies rely on our quality products.

Bieler+Lang development engineers are continually improving our products, which are manufactured and calibrated in-house in line with stringent quality standards. Our products are both easy to use and extremely reliable.

No matter how large or small the project, our knowledgeable sales advisors will analyze your safety requirements on site and advise you on the regulations relevant to your application. Then our specialists will design a safety concept tailored to your needs. Your system will be built to specification by our in-house production facility. But our service doesn't end there. Our service engineers will install the new system and commission it for you. From that point on you will be supported by our comprehensive service network, because only a regularly serviced system can satisfy the demands placed on it for years to come.

The complete service - Bieler+Lang Gas Detection and Warning Systems


Company history

1967The company is founded by Hermann Bieler and Karl-Heinz Lang
The main area of business is contract production of electrical components and circuit boards
1969The company starts to develop a range of gas warning systems
1970Construction of the production plant in Oberachern

The company launches its first gas warning systems

1975The company now has a market presence throughout Germany
1982First gas measuring system with processor control
1983The gas warning systems range is expanded to include detection systems for toxic gases and oxygen
1983Launch of CO warning systems for parking lots and underground garages
1984Development of measuring and control systems for residual oxygen
1985Contractual service representatives throughout Europe
1992Launch of 2nd-generation CO warning systems
1996Analog controller systems are replaced by new product families
1996Further development of the detector range
1997All explosion-proof detectors now have harmonized European certification
1998Launch of 3rd-generation CO warning systems
2000DIN EN ISO 9001 certification
2002The QA system is certified to ATEX 100a by PTB
2002Launch of new explosion-proof detectors to ATEX 100a standard

First CO detector to use bus technology


Launch of a stand-alone unit in the ExDetector range for explosion zone 2

2006Launch of the Ecoline range, which complies with requirements of DVGW (German Technical and Scientific Association for Gas and Water) and EN 50194 functional standards
2008Launch of the GMC Biogas08 biogas analyzer
2009Launch of an ExDetector unit for explosion zone 2 and a gas controller