The TM-U3 ultrasonic hardness tester performs nondestructive testing on metals and alloys with minimum thickness of 3 mm. This versatile instrument measures various workpiece types including strip/plate materials, mold hardened layers, blade hardened layers, tooth surface hardened layers, flange edges, wheels, turbine rotors, thin plates, shafts, pipes, containers, knife edges, and welding parts.

• Nondestructive hardness testing for hardened layers and thin workpieces
• 3.5-inch color LCD screen with clear display interface
• Battery status indication with low battery alarm system
• Conversion between common hardness scales (HV, HB, HRC)
• Hardness value calibration and calibration deletion functions
• Material selection capability for steel, cast steel, alloy tool steel, special cast iron, and non-ferrous metals
• Large 8G SD card memory for data storage
• 360° free measurement without compensation requirements
• Statistical display including maximum, minimum, average values, standard deviation, measurement count, and previous readings
• Upper/lower limits setting with out-of-range alarm
• Rechargeable lithium-ion battery with over 30 hours continuous operation
• Portable stand available for enhanced measurement accuracy

• Operation Stand
• V-Shape Base