1. A new system circuit with strong anti motor interference capability has been designed, integrating the instrument display with the lifting and shearing machine, with a compact structure, easy operation, and beautiful appearance.

2. Adopting new integrated chips and designing new high-precision system circuits, the original four ranges (0~5kg. f, 0~10kg. f, 0~15kg. f, 0~25kg. f) have been unified into one range of 0~25kg. f, eliminating the process of range selection and making operation more convenient and accurate.

3. The lifting operation of the shear device, which was originally carried out directly on the high voltage (220V) of the mains, has been changed to weak current lifting control, greatly improving the reliability and safety of the operation.

4. The interface for communication with the computer has been set up. If the user needs it, the C-LM3 can be upgraded to the C-LM4 model to obtain the function of automatic recording of experimental data by the computer.

Starting from May 2007, a new high-precision product of C-LM3B with the above-mentioned improvements will be provided to users.