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 RX-1000硬度計，測量泡沫，塑料，橡膠的硬度。

The Checkline RX-1000 Mini-Dial Durometer is both compact and easy to use. Its small dial face and included leather clip-on carrying case make it easy for an inspector to carry the gauge- for work around the shop, or out in the field. The Check-Line RX-1000 durometer holds the maximum reading until reset by pressing the button at the top of the gauge. The max-hold feature and small dial size make the RX-1000 a good choice for hard to reach places, or for out of sight testing.