www.safetyandhealthmagazine.com/articles/15332-gas-detector
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Gas detector

February 26, 2017

The DG-TT7-S H2S Gas Detector with Metal Oxide Semiconductor sensor underwent stringent functional safety assessments by an external certification body and is now SIL 2-approved. The DG-TT7-S is a solid-state metal oxide semiconductor gas detector used mainly for the detection of hydrogen sulphide in arid locations where air is present, or in locations with continuous H2S background. It features on-board relays, plug-and-play sensors and a high-visibility display that changes color depending on the status mode.

Tyco Gas & Flame Detection