The Model S4100C Intelligent Sensor is a microprocessor-based transmitter with integral three-digit readout. It is designed to measure and display concentrations of combustible gases in the 0-100% LEL range, but will continue to display concentrations up to 120% LEL. The sensing element may be incorporated in the transmitter housing or remotely mounted at distances of 600 meters. The S4100C will record the number of successful calibrations, compute the sensor output in mV during calibration and store in non-volatile memory, along with calibration and set-up parameters. CE Marking, ATEX, GOST, Kazakhstan approved. SIL 3 suitable, certified by FM to IEC 61508.