Amphenol SGX Sensortech SGX_EVAL_EC Gas Sensor Evaluation Kit lets users connect and read data from various SGX series electrochemical sensors. With the SGX_EVAL_EC kit, users can easily read out the gas concentration levels measured by the sensor or even several gases simultaneously (dual gas series). The PCB includes sockets for SGX electrochemical gas sensors (Series 7, Series 4, PS1, PS4, and SGX-VOX/AOX/EOX). A temperature measurement IC is located on the PCB near the sensor sockets, and the board is equipped with an input for modules to increase/extend capabilities. The SGX_EVAL_EC evaluation kit allows the polarity voltage to be adjusted or set to zero. Suppose the sensor has a linear concentration-response. In that case, a basic calibration can be performed using the supplied software to obtain a concentration reading in ppm, % volume, or %LEL (lower explosive limit).