Aubagne, France - Tyco Gas & Flame Detection is pleased to announce that the DG-TT7-S and DM-TT6-S gas detectors with Metal Oxide Semiconductor (MOS) sensor are now SIL 2 approved.DM-TT6-S gas detectors

The devices underwent stringent functional safety assessments by a third party agency in order to receive SIL 2 approval. A SIL 2 level Functional Safety Approval is obtained when using the detector output current in the safety loop of the customer’s system.

The DG-TT7-S and DM-TT6-S are solid-state metal oxide semiconductor (MOS) gas detectors used mainly for the detection of hydrogen sulphide in arid locations having air present. The units employ a robust sensing element that requires recalibration just once every three months for optimum performance, but in some instances calibration can be extended to six month intervals. In addition the device does not need a high gas concentration dose to react with the active sensing material. 

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Tyco Gas & Flame Detection is comprised of former IST companies, Detcon, Oldham, Gas Measurement Instruments (GMI) and Simtronics, along with the gas and flame business of Scott Safety. The five legacy companies have come together to form one unifited comepany with a unified vision for providing end-to-end solutions and the most comprehensive portfolio of gas and flame detection products in the many industries it serves. For more information visit


Tyco is the worlds largest pure-play fire protection and security company. Tyco provides more than three million customers around the globe with the latest fire portection and security products ans services. A company with $10+billion in revenue, Tyco has approximately 57,000 employees in more than 900 locations across 50 countries serving various end markets, including xommercial, institutional, governmental, retail, industrial, energy, residential and small business. For more information, visit