... outputs(12V-24V),4 Analog Inputs and up to 8 NC/NO inputs and RS232 Serial Port. It allows you to ... Different from RTU5010 is the GSM Controller RTU5011with 8 Digital NC/NO inputs,8 relay drivable Outputs, 4 Analog inputs, Microphone ... . Energy saving, street lights control;14. Tanks, temperatures, water leakage;15. Transformer stations;16. Unmanned machine rooms;17. Control room application ...