This Micro Vickers hardness tester is a precise testing system suitable for hardness analysis of metallic specimens in metallography laboratories or production environments. Model No. 900-391A Vickers Hardness Tester Includes Video cam, adapter and manual measurement softwar Model No. 900-391B Vickers Hardness Tester Includes Video cam, adapter and Auto-Measurement software Model No. 900-391C Vickers Hardness Tester Includes Video cam, adapter and Turret control w manual measurement software Model No. 900-391D Vickers Hardness Tester Includes Video cam, adapter and Turret control w Auto-Measurement software Model No. 900-391E Vickers Hardness Tester