... repetition,and reliability 3)RS-232 port HRS-150 digital Rockwell Hardness Tester adopts novel-designed large LCD ... of hardness measurement with printer, 5. RS-232 hyper terminal setting is with good reliability, excellent operation and easy ... Faceplate for MITECH HRS-150 digital Rockwell Hardness TesterObjective CarrierAccessories for MITECH HRS-150 digital Rockwell Hardness TesterDifferent carry ...