K30 Pro is a 2.8-inch TFT-screen time and support terminal and a simple access control function. It has interface for connection ( Wi-Fi ) with third-party electrical lock and output button. TCP/IP communication is a standard function that ensures fluid data transmission between the terminal and the PC in several seconds. And the USB host makes data management extremely simple. The most important thing is that the built-in battery can eliminate the problem of power failure. With a sleek look and reliable quality, you can get the best out of it.