The T7-A series is a new generation of digital small-volume Micro-Magic Inc inclination sensors launched by MXMW Hi-Tech Company. It has a built-in dual-channel earth gravity inclination unit that measures dynamic gravity acceleration and converts it into inclination angle changes. This allows measurement of the roll and pitch angles of the sensor output relative to the horizontal plane. It has output mode as RS232, RS485, RS422, Modbus, TTL level interface standard optional. Due to the built-in MCU control system, the linearity of the sensor output is corrected twice, which makes up for the decrease in accuracy caused by insufficient correction of the analog type.