This product, mostly used to monitor various parameters of an electrical furnace. The unit operates on 24Vdc and has three different sections. One section monitors R Phase voltage (0-500Vac) of the line and converts it to 0-10Vdc and at the same time monitors the line frequency (0-60hz) as well which gives out corresponding voltage 0-6Vdc Second section senses the temperature from 4 different PT100 sensor probes (0-200 deg Centigrade) and gives out 4 channel analog voltage of 0-10Vdc. Third section monitors the R, Y and B phase currents through the CTs on the board. The current range would be 0-100A ac and its corresponding outputs would be 0-10Vdc. This module can be used for different application as well.