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硬度計是測量物體硬度的儀器，表示材料抵抗硬物體壓入其表面的能力。它是金屬材料的重要性能指標之一。一般硬度越高，耐磨性越好。根據所測硬度單位：洛氏硬度計、維氏硬度計、顯微硬度計、布氏硬度計、邵氏硬度計、巴氏硬度計、里氏硬度計、韋氏硬度計、肖氏硬度計、布洛維硬度。根據使用方式：便攜式硬度計、臺式硬度計。

進口硬度計美國Check-Line HPS硬度計，測量塑料，橡膠，海綿的硬度。

Available Scales: A, B, C, D, DO, O

CHECK-LINE HP Series durometers are designed to measure the hardness or firmness of a wide variety of parts and test samples. This unit is designed in accordance with ASTM and DIN quality standards which specify the bottom contact area (working diameter), sensing pin configuration and internal spring forces. Additionally, the displacement of the sensing pin, relative to the dial indicator, is specified by these standards.

The Checkline HP Series provides an analog dial indicator calibrated for a range of 0-100 Shore units, an optional memory pointer is available to record the highest recorded reading.

All CHECK-LINE Durometers feature a unique spring-operated test pressure shell, which helps assure that similar test pressures are used for each measurement. This system significantly enhances the measurement repeatability, especially between different operators.

Oversized flat bottom surface makes position of working face (area of contact as specified in ASTM/DIN Standards) convenient and consistent which limits variability between operators.