The digital display surface Rockwell hardness tester is a high-tech product integrating machine and electricity. The instrument adopts microcomputer controlled intelligent menu operation, with novel and beautiful shape. It can select the surface Rockwell hardness scale, digitally display the test data, and convert various hardness values. Equipped with thermal printer, it has the functions of test data storage, print output, RS232 super terminal setting, etc. It is an ideal product for upgrading. The test process is automated, and the operation and reading errors are eliminated.