Choose a DMQ portable hardness tester that operates on the rebound Leeb method, on the ultrasonic contact impedance (UCI) method or choose our QH7 C that combines both hardness testing methods to meet the widest number of applications. DMQ portable hardness testers are precise and easy to operate becoming the ideal solution for field measurements, to control incoming parts, classify and identify materials in stock, measure in hard to reach areas and for quality control during production.