ZC-4RTD is an interface for RTD sensors (PT100, PT1000, PT500, Ni100) with 2,3 or 4 wires. The number of input is 4 and the each input is independent from each other. It’s a CANopen device and can be connected into a CANopen network. A 6-way galvanic isolation among Power supply // inputs // RS485 circuits assures the integrity of your datas (each input channel is isolated from the other circuits).