This document introduces the features and characteristics of the TPM7 DC screen monitoring system, including system structure, monitoring functions, battery management, control functions, alarm relay output functions, power failure data storage functions, background communication functions, and additional functions. The system adopts a multi-bus connection, which has high reliability and stability, and supports various functional expansion modules. The system uses a 7-inch color touch screen, with a separate human-machine interface and control program, which improves system reliability. The system also supports GPS clock date correction and connection to various automation configuration software.