GSH-SF6 Smart sulphur hexafluoride (SF6) sensor by EVIKON for the E2639 detector with a range of 0...2000 ppm. Pre-calibrated NDIR module with M12 connector, hot-swappable and with an integrated calibration calendar. More information
Out of stock - can be requested
| Detector type | Smart sensor |
| IP Rating | IP 65 |
| Type of gas | SF6 sulphur hexafluoride |
| Weight | 0.50 kg |
GSH-SF6 is a pre-calibrated sensor module for the E2639-GSH detector and is used to measure sulphur hexafluoride in the range of 0...1000 ppm. It connects via an M12 connector and can be hot-swapped without opening the detector housing. An integrated calibration calendar monitors the date of the next calibration, while the calibration itself can be carried out separately from the installed E2639 main unit using the SSC configurator.
The GSH-SF6 sensor is designed for monitoring sulphur hexafluoride in environments such as high-voltage switchgear substations, power plants, transformer substations, laboratories and other technical workplaces where SF6 is used as an insulating or arc-quenching medium in electrical equipment.


Sulphur hexafluoride is colourless and odourless, which makes it particularly dangerous because its presence cannot be detected without a detector. It is released through leaks from electrical equipment such as high-voltage switchgear substations, circuit breakers or transformers, where it is used as an insulating and arc-quenching medium. Even low concentrations of sulphur hexafluoride can cause health problems such as breathing difficulties, dizziness or respiratory tract irritation, while higher levels may lead to suffocation due to oxygen displacement, as SF6 is approximately five times heavier than air and accumulates near the floor.
The smart sensor offers a major advantage during calibration – the entire process can be carried out separately from the installed detector. While the E2639-GSH main unit remains in operation at the installation site, the GSH sensor module can be removed and calibrated independently – at the distributor’s premises, the integrator’s premises, or directly at the manufacturer Evikon MCI. This is done using the dedicated SSC configurator, through which the module is connected to a computer. Once calibrated, the GSH module can simply be plugged back in via the M12 connector – without opening the device housing, without complicated procedures, and without downtime for the entire installation.

Each sensor package includes the manufacturer’s original calibration certificate in English, confirming the accuracy and correctness of measurement at the time of leaving the factory.
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