When Safety Counts!
Gas Detection & Warning Systems
Bieler+Lang manufactures and distributes gas warning devices & gas detection systems for more then 50 years, all-around the globe. Because safety counts.
Bieler+Lang is your competent partner
for safety technology and work safety.
In many areas, the occurrence of harmful or explosive gases and vapors is to be expected.
We help you to protect people, the environment, technical equipment and property from serious damage. For over 50 years, our products have been providing timely and reliable warning of gas accidents and explosions.
Therefore, trust in Bieler+Lang!
Products
Gas detection & warning systems
Explosive & flammable gases
Toxic gases, CO² 
Refrigerant
Mobility & Parking
Biogas
Building servicesServices
Everything from one source
Project planning
Everything from one source
We take care of everything for you, from project planning to installation of your new gas detection system. Sales and service are there to provide you with expert support.
Engineering
Individual gas detection systems
From small enclosures to floor-standing cabinets, we custom-manufacture your individual gas detection system.
Maintenance & Repair
Provision for your investment
Conclude a specific maintenance contract with us.
This way, you can be sure that your gas detection system will have the desired high availability.
Service
Safety must be maintained
Service
Maintenance &
Maintenance contracts
Current Trade Fairs
Bieler+Lang on the road for you – safe the dates
Biogas Information Days 2025 – Ulm, Germany
On Wednesday and Thursday, January 29th and 30th, 2025, manufacturers, operators, and stakeholders from the biogas industry will convene once again in Ulm, Southern Germany for the Biogas Information Days 2025.
From 10 AM to 5 PM, a series of expert lectures will inform attendees about the latest trends and innovations, while also addressing the future challenges facing the biogas industry.
Bieler+Lang Gas Warning Technology will be present at booth No. 149 in Hall 1, and we warmly welcome your visit.