The new Sentro 1 has intelligent plug in gas-sensing modules to provide safety monitoring of toxic and flammable gases. The system uses pre-calibrated, input eModules for monitoring a wide range of gases, with each one storing all of the necessary data about type identification, sensing range and specific calibration. The sensor integrates with other plant equipment and monitoring devices, and has a wide choice of fully conditioned output signals. The unit uses electrochemical cells for monitoring toxic gases, a poison-resistant, catalytic combustion sensor for monitoring flammable gases, and an infrared sensor for CO2 and methane. — Trolex Ltd., Stockport, U.K.