Gas Detection Systems for maximum safety

When it comes to reliable gas detection, you can trust GfG devices. With more than 60 years of experience in the field of gas detection technology, our wide range of portable gas detectors and fixed gas detection systems benefits from professional insights and practical expertise. We can also provide you with solutions for monitoring water circuits and an extensive selection of accessories. If you have any questions, please do not hesitate to contact us.

Portable Gas Detectors

Portable single-gas and multi-gas monitors, which measure up to seven different gases simultaneously, warn employees of possible hazards posed by gases. Their long-life sensors and high battery life make them an economic and safe choice for many applications.

» To our Portable Gas Detectors

Fixed Gas Detection Systems - Controllers

GfG controllers are innovative and flexible control and evaluation units for numerous tasks. For measuring different gases and vapors in various applications, they offer the advantage of unlimited configuration options.

» Controllers for every task

Fixed Gas Detection Systems - Transmitters

Toxic gases and vapors pose a danger in many industries. Our transmitters with will let you reliably detect almost any gas with their various different sensor technologies and thus ensure a high level of safety.

» The right transmitter for every gas

Water measurement technology

Our measurment systems are designed to let you reliably monitor liquids, such as water and brine. We also offer solutions for selective ammonia measurement in the refrigeration circuit or ammonium measurements in sewage treatment plants.

» Our solutions for water measurement


We offer a comprehensive range of accessories for our gas detection systems and gas measuring instruments. From test stations, relay modules and adapters to software or even transport cases. Here you will find the appropriate accessories for our devices.

» To our accessories assortment

Test gases

Gas measuring instruments must be tested and calibrated at regular intervals. For this purpose, we offer you an extensive range of test gases. Both pure gases and multi-gas mixtures can be supplied to suit every area of application.

» The right test gases for calibration

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