Check the listing for details. Ultrasonic Hardness Testercan ltrasonic contact impedance method to measure vari. Condition: New. Listed at 495.00 USD. It supports multiple hardness scales, including HL, HV, HB, HS, HRA, HRB, and HRC. Hardness Scales HV、HRC、HRB、HRA、HS、HL、HB. Accuracy ±4%H+10HV,±2.5HRC (Probe fixture stand test, H as the standard value).