... resolution), RS485 Port(Support Modbus RTU Protocol, more protocols can be added according to application requirements), reserved RS232 Serial Port ... machines by SMS(Short Message Service) Or GPRS. Another, it can transmit data from apparatus (thermometer, humidity meter, electric meter, ... center by RS232 port or RS485 Port, at present supports ABB,KL,HHE intelligent meters by RS485, more special ...