The Jupiter gas detection system—Model HVS4000—monitors and reports accurate information about hazardous and toxic gases to a SCADA monitoring system. Its features include a sensor life indication, two (250VAC - 8 amp) settable internal relays, a three-digit easy to read display, dual MODBUS connections and 4-20mA proportional gas level output. This system can be connected directly to our Emergency Gas Shutoff systems to immediately remedy a gas leak situation. This microprocessor-based system detects most toxic gases in parts per million (ppm), including: Ammonia, Carbon Monoxide, Chlorine, Chlorine Dioxide, Ozone, and Sulfur Dioxide as well as Oxygen deficiency. The Jupiter system is certified as explosion-proof with intrinsically safe inputs for use in hazardous locations.