HARTIP2200 is an innovation of HARTIP series portable hardness tester. It works with a wireless RF probe, The RF probe can transfer measuring value to main unit wirelessly via RF module within the range of 10 meters. There is a rechargeable Li-ion battery inside RF probe and can be charged directly by USB port of PC. The main unit with LCD display can be placed around anywhere. So one person is OK for operation. Besides, the main unit with magnetic housing can also be attracted upon to the surface of workpiece to avoid of dropping to damage.