1.1 typical applications * die cavity of molds * inspection of bearing and other mass produced parts on a Production line * failure analysis of pressure vessel, steam generator and Other equipment * inspection of installed machinery, permanent parts of Assembled systems and heavy work pieces. * testing surface of a small hollow space * material identification in the warehouse of metallic materials * rapid testing in large range and multi-measuring areas for Large-scale work piece 1.2 testing features * palm size for narrow space. * test at any angle, even upside down. * direct display of hardness scales hrb, hrc, hv, hb, hs, Hl. * large memory could store 250 groups including single Measured value, impact direction, material and hardness Scale etc. * user recalibration function allowed. * can communicate with pc computer for statistics and Printing by the optional cable. * manual or automatic shut down. * low battery indication. 1.3 technical specifications Display: 12.5mm lcd with back light Accuracy: display error 0.8% at ld=900 Measuring range: 200-900l Conversion: hl-hrc-hrb-hb-hv-hsd Materials: 9 different common materials With rs232c interface Memory: 250 data can be stored and re-readable Impact device: d will handle the majority of hardness testing Applications. Weight: 75g Power supply: 2x1.5v aaa size battery Dimension: 1466536mm Weight: 130g (not including batteries) Working temperature - 1050 Storage temperature- 30.