GSH-HFC-O2-5Y Smart oxygen (O2) sensor EVIKON for the E2639-GSH detector with a measuring range of 0...25 % vol O2. Pre-calibrated electrochemical 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 | O2-Oxygen |
| Weight | 0.50 kg |
GSH-O2-5Y is a pre-calibrated sensor module for the E2639-GSH detector, designed for measuring oxygen in the range of 0...25 %vol O2. It connects via an M12 connector and can be replaced while live 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-O2-5Y sensor is intended for oxygen monitoring in environments such as industrial facilities, welding shops, filling stations, chemical laboratories, marine spaces, tunnels and other enclosed or poorly ventilated areas where a dangerous decrease or, conversely, an excessive increase in O₂ concentration may occur.


Oxygen is a colourless and odourless gas, yet one that is vital to life, making up approximately 21% of the Earth's atmosphere by volume. It is essential for the respiration of humans and animals and plays a key role in many chemical and combustion processes. High oxygen concentrations can increase the risk of fire, while a lack of oxygen can be life-threatening. For this reason, monitoring oxygen concentration in enclosed or industrial spaces is essential for ensuring safety.
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. A dedicated SSC configurator is used for this purpose, through which the module is connected to a computer. Once calibrated, the GSH module simply needs to be plugged back in via the M12 connector – without opening the instrument 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 it leaves the factory.
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