Power Supply:Rechargeable lithium battery, supporting long periods of continuous operation. Wide measurement range：Capable of measuring complex surfaces such as flat surfaces, curved surfaces, deep grooves, and small holes. Compact and lightweight: Easy to carry and operate on-site, suitable for workshops, laboratories, and outdoor measurements. Mechatronic design: Compact structure, high integration, strong reliability, and convenient maintenance. Wide range of applications: Can be used for surface roughness testing of various materials (metals, plastics, ceramics, etc.)., Manufacturer: ZKLGS