The series 1701 Monitor is a feasibly-priced device, designed for temperature monitoring and control in dry type transformers. It includes 3 RTD (Pt100 type) inputs for monitoring the temperature of the three coils and an additional RTD to monitor the ambient temperature. The 4-digit display is easy to read even in high luminosity conditions. The monitor is equipped with 6 relay outputs configurable by the user, providing for cooling control and for alarm and trip functions. This model includes 2 communication ports (USB and RS-485 which transmit data to a master station (not included), through Modbus or DNP 3.0 protocols. The din-rail mount design of the equipment makes possible the interconnection of multiple monitors in a daisy chain, thus permitting the monitoring of several transformers concurrently.