The SMS-534 is an intelligent 3G SMS/Voice controller for industry applications with the simple commands and SMS tunnel function, and power can be input by the external power or Li-Battery. It supports UNICODE or 7 bit format for users to implement sending SMS messages with various languages. The SMS-534 also provides the sound alarm application with the pre-defined voice files. In addition, the DTMF function of the SMS-534 is for the applications with the keypad of phones to control the local I/O. And, With the SMS DBS software of ICP DAS, users can manage the SMS-534 in PC centrally.