Data Storage Capacity : Features 48~350 organizations ( 32~1 impacts ) of data storage to record of important tests conclusions for future reference 7 Hardness Balances Conversparticlemail : This transportable hardness tester backs 7 hardness balances including , , HRA , HRB , , , and , allowing flexible switching for varied testing demands Wide Measurement Extent : Standard D type investigate procedures HLD ( 170~960 ) with preset upper / lower limits and auto alarm for outside extent values , ensuring precise and consistent conclusions 20 Substance Agreement : Ideal for testing 20 materials such as steel , wrought iron , rustless , aluminum alloys , bronze , additionally , ensuring wide application across sectors Backlit LCD Screenumberepeat : Armed with a backlit display for clear observability in shadowy conditions , enhancing usability in various conditions, Manufacturer: Zeizafa