... Traffic signals: Pulse (contact switch) signals, 4 ~ 20mA, DC1 ~ 5V and so on.6, The input signal: Temperature signal input: Two ... support RS485, HART, MODBUS, OMROM / PLC, Modem, Profibus and etc. 8, Showed forms: LCD (Feeding quantity: L, Kg, pound, gallon, etc.) 9 ... support RS485, HART, MODBUS, OMROM / PLC, Modem, Profibus and etc.8, Showed forms: LCD (Feeding quantity: L, Kg, pound, gallon, etc.)9 ...