... GPRS. Another, it can transmit data from apparatus (thermometer, humidity meter, electric meter, flowmeter, PLC) to user or monitoring center by GPRS. ... MC55i quad-band GSM Module inside to make it is industrial class reliability, is a low cost, wireless M2M, wireless ... status, pulse counter, digital relay output status, temperature value, humidity value and other) and upload to the SCADA(Real time ...