The Progas SF6 gas detector is designed to monitor concentration of sulfur hexafluoride (SF6), which is a synthetic gas with broad application in electric engineering and at metallurgical smelters involved in production of magnesium and aluminium. SF6 is a very durable gas with long-lasting presence in atmosphere and contributes to formation of greenhouse gases. Because of the aforementioned reasons as well as due to very high cost of its production the need to detect constant presence of that gas in industrial atmospheres has become really crucial. On the contrary to the most popular solutions, these gas detectors are furnished with IR sensor and offer high dependability and accuracy of measurements combined with pretty low cost of installation and operation. The Gas Detector can not be installed in potentially explosive atmospheres.