The S4000TH hydrogen sulfide gas detector is designed to protect people, equipment and plants from the dangers of hydrogen sulfide. The S4000TH stores the maintenance event with a date and time stamp. Gas concentrations are displayed on a three-digit LED enclosed in an explosion-proof housing. The device is available with an optional relay configuration that is appropriate for SIL 2 processes, and is equipped with a metal oxide semiconductor sensor. The detector monitors gas in parts per million and provides status indication and alarm outputs.

General Monitors, Lake Forest, Calif.
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