• Print
    • Normal text size
    • Medium text size
    • Large text size

Principal Companies

Total Protection Solutions from Gas Hazards, Environment, Climate & Temperature

GfG is a world leader in gas detection and measurement technology. For over 40 years, GfG has specialized in designing, developing, and producing the safest and most reliable equipment available.

GfG offers an extensive range of Portable gas monitors, fixed gas detection systems and respiratory airline monitors. The product range includes sensors, the world's smallest gas monitors, microprocessor-controlled multi-gas detectors, and computer-aided system solutions. GfG provides diverse solutions for explosive, toxic, and oxygen gas detection in air. GfG equipment is used in a variety of applications and industries (e.g. automotive, chemical industries, public utilities, landfills, hospitals, fire and civil protection, mining, energy supply, food processing, shipping, steel industry, agriculture, research institutes and universities, etc.) where the protection of life and property is essential. GfG's products are manufactured at various GfG production sites in Germany, Switzerland South Africa & USA. Safety and quality are GfG's highest priorities. GfG is certified according to the newest ISO 9001:2000 and ATEX, IECEx QAR QM.


Founded in 1981 by Pete Furton, California Analytical Instruments (CAI), a part of the ENVEA Group, was established to serve the rapidly evolving air quality monitoring market. Since its inception, CAI has focused on developing advanced gas analyzer systems designed for long-term reliability and precision. The company is recognized for its strong commitment to customer satisfaction and dependable solutions in continuous emissions monitoring. CAI analyzers are built on proven technologies including Chemiluminescence, Non-Dispersive Infrared (NDIR), Flame Ionization Detection (FID), Paramagnetic measurement, Photoacoustic Infrared Spectroscopy (PAS), and Fourier Transform Infrared (FTIR), ensuring accurate and consistent measurement of a wide range of gases.


TSI Inc. serves a global market by investigating, identifying and solving measurement problems. As an industry leader in the design and production of precision measurement instruments, TSI partners with research institutions and customers around the world to set the standard for measurements relating to aerosol science, air flow, Indoor Air Quality (IAQ) Monitors, fluid dynamics and biohazard detection. With headquarters based in the U.S. and field offices throughout Europe and Asia, TSI has established a worldwide presence in the markets we serve. Every day, our dedicated employees turn research into reality.


Ion Science Ltd is an international manufacturer of gas detection, leak detection and corrosion monitoring equipment based in Cambridge, England with offices and representation worldwide. Our instruments are designed in-house to meet the needs of a wide range of industries and applications. Research is at the heart of our company and fundamental to our technology and product development.

Our PID (photoionisation detection) technology is key to a number of our products that are second to none, with a detection range of ppb to 10,000 ppm for volatile organic compounds (VOC's) and other toxic gases.


Sauermann Group is a globally recognized manufacturer of measurement, control, and management solutions dedicated to improving indoor air quality and industrial process reliability. The group designs and manufactures instruments for HVAC, refrigeration, air quality monitoring, and industrial applications, with a strong focus on accuracy, durability, and ease of use. Known for its engineering expertise and customer-centric approach, Sauermann delivers dependable solutions trusted by professionals across commercial, industrial, and laboratory environments worldwide.


Wahl Instruments, originally based in Culver City, CA, was formed in 1953 to manufacture precision temperature instruments for industry. Since then, Wahl has introduced many technical innovations in portable temperature instruments. Together Palmer Wahl offers the finest selection of Industrial Instrumentation products in the world, temperature, pressure, humidity, test & calibration instruments - including thermal imaging cameras; infrared thermometers; temperature calibrators; bimetal, dial, industrial, and laboratory thermometers ISO 9001:2000 Certified.

Download Catalogue