New generation of gas detectors Gamma has developed a new generation of gas detectors for its new TVS-3 Environment Monitoring Station which can be used as an individual gas detector device and can be connected directly to a data processing computer. GTI-4 detectors are built with electrochemical sensors and can measure 1-4 different gases at the same time. The built-in microprocessor provides data processing, evaluation and automatically corrects the sensitivity and the shift in base line caused by the change of the environment. The calibration of all detectors is performed individually with certified gas samples and divider pumps. In its basic configuration GTI-4 is available with the undermentioned sensors.