... point.7) Communication:RS232 OR RS485 Modbus RTU protocol.8) Power supply:+12V OR 24V/30mA,etc.9) Size ... Controller, Digital Adjustor,thermocouple (TC and RTD), Panel Meter, Sensor Meter, inductor, Power Meter, Coulometer, Voltage Meter, Ampere Meter ... ,Timer,Timer Relay, Solid State Relay, Proximity Sensor, ,Pressure sensor ,load cell sensor, KNE KSC box, Rotary Encoder and computer integrated ...