a) smart battery charging management capabilities, extended battery life;
b) improve the long-distance communication, through RS232/RS485 interface "four remote control" function, and unattended;
c) a sound alarm handling and record, when Abnormal system, monitor automatically generated sound and light warning, at the same time on the screen "failure" to flicker, fault output node movements; users can fault the current and historical record of failure for system failures;
d) system can be set on-spot or remote control