Range of ModBus RTU Masters.

Input None
Output RS232, RS485, Modbus TCP

Input None
Output RS232, RS485, Modbus TCP, Logging.

Input 4 Digital Inputs
Output 2 Relays, RS232, RS485, Modbus TCP and Logging.

Input V, I, RTD, T/C's, 2 Digital.
Output 2 x 4-20mA, 2 x Relays

Input V, I, RTD, T/C's, 2 Digital.
Output 2 x 4-20mA, 2 x Relays

Input Modbus RS485, RS232,
Output 132 x 32 Pixels with back light.