Radix manufactures latest model x49a high performance on/off process controller that can be programmed. Some of the salient features of these programmable on/off controllers include universal input with transmitter supply; up to four relay outputs; six alarm types; one retransmission [current/voltage] output; and rs485 serial port with modbus rtu protocol. X49a programmable on/off controllers are available with a large number of user programmable parameters including input type, input range, unit, direct/reverse outputs, digital filter, display bias, six alarm types, two control types, etc. These programmable on/off controllers are available with technical specifications like 48 x 96 x 115 mm plastic panel mount enclosure; plug-in construction for instantaneous field replacement without affecting terminal wiring; 85265 v ac smps; and with 2030 v dc power supply.