MRR(M)-150D1型液晶屏數顯洛氏-表面洛氏硬度計外觀新穎，界面菜單化，測量裝置采用光柵傳感器及計算機控制，硬度示值在液晶屏上直接顯示是機電一體化的硬度測試儀器。該機能進行各種硬度參數相互自動換算，鑒別試件最小厚度參數相互自動換算，鑒別試件最小厚度和測定試驗的環(huán)境溫度。內置打印機，讀取相關試驗結果。實現(xiàn)了自動化操作，消除人為操作和讀數誤差。
    該硬度計適用于硬質合金、炭化物、表面淬火鋼、硬化薄板、淬火鋼、調質鋼、冷硬鑄鐵、鑄鐵、鋁、鋼、鎂等合金鋼。

    MRR（M）-150D1 type lcd holds the number shows the rockwell surnamerockwell degree of hardness     accounts the external appearance novel,the interface menu turns,measuring equip to adopt the light grid spreads tofeel machine and calculators control,the degress of hardness shows the value to    hold in the lcd the direct manifestation in top is a degree of hardness test instrument thag machine electricity integral whole turn,the function,sproceeding every kind of degree of hardness parameter converts automatically mutually,distcriminating to try an environment for the minimum thickness experiments with the measurement temperature.the inside places the printer,reading related experimenting the result.realizes the automation operates,dissolving the factitiousness operate with read the few error margin.        
    That degress of hardness accounts to be applicable to the hard metals,carburizing steels,quenching steels,hardcast irons,mild steels,Al,Cu and malleable irons.