Wide Measuring Range: The HT-1800 portable hardness tester covers a broad range of HLD (200~960), making it suitable for testing various materials with different hardness levels Versatile Impact Devices: Equipped with standard D impact device and optional G, C, DL, this instrument automatically identifies the probe, offering flexibility for different testing scenarios High Precision: With an indication error of less than ±6HLD (HLD=800) and repeatability of less than 6HLD (HLD=800), the HT-1800 ensures accurate and reliable hardness measurements Multi-Directional Measurement: Supports vertical downward, diagonal downward, horizontal, diagonal upward, and vertical upward measurements, allowing for versatile testing in various orientations Portable Design: Compact size (177x73x35mm) and high-contrast LCD display with backlight make it easy to use in different environments, while its ability to store 99 groups of data ensures efficient data management