The satellite gas detector (Model HVS400) monitors and reports a variety of hazardous and toxic gases to a SCADA system or other electronic monitoring equipment. Its features include an LCD status indicator, one-person calibration, magnetic tamper-free switching, and 4-20 mA analogue gas level outputs. This system can be connected through a SCADA system or other electronic system to Halogen’s emergency gas shutoff systems to immediately remedy a gas leak.The microprocessor-based electronics detect most toxic gases in parts per million (ppm). The gases detected include: ammonia, carbon monoxide, chlorine, chlorine dioxide, ozone and sulphur dioxide. The satellite gas detector is compact (only 4.5 inches long) and certified as intrinsically safe for use in hazardous locations.