Portable Handheld High-precision digital display: Supports hardness testing of a variety of metal materials, with clear and intuitive readings. Multi-hardness scale conversion: Flexible switching between multiple hardness scales. Portable design: Compact and suitable for on-site testing and measuring large workpieces. Built-in data storage: Stores multiple sets of measurement data for easy analysis and traceability. Reliable and stable performance: Resistant to vibration and interference, suitable for hardness testing in complex environments., Manufacturer: MTHCKXJBSUZ