GES, which stands for Gas and Environmental Services, has been established since 1995 and are the manufacturers of the Gas-Tec range of gas detectors.

Their products are used by a wide range of users, from sole traders to service centres, national companies and even the utility companies.

Gas-Tec Mk4 Flame Ionisation Detector (FID)

Gas-Tec Mk5 Flame Ionisation Detector (FID)

Obsolete

Autofim II and Autofim II GC