A: answer
(1) Improve the measurement accuracy;
(2) Improve the dynamic measurement range;
(3) Improve detector structure (no reference surface);
(4) Optimized motor control (intelligent motor control)
(5) Improve the performance of anti-environmental interference;
(6) Software upgrade and networking function enhancement;
(7) Built-in uninterruptible power supply;
(8) Extend the data connection;
(9) The function of host Settings menu has been enhanced.
