Mini pen-style design: Lightweight and portable, for quick metal hardness testing. Precise digital display: Clear readings enhance testing efficiency and accuracy. Compatible with various materials: Can measure the hardness of metals such as stainless steel and alloys. Easy and efficient operation: One-touch measurement, suitable for both field and laboratory use. Rugged construction: Shock-resistant and interference-resistant, suitable for a variety of industrial environments., Manufacturer: CFWWSAQ