good man-machine communication interface
and this kind of material is made of rubber plastic and has blister in plastic
Interface: Serial RS 232
Operates on windows based computers
The housing has been carefully shaped to fit comfortably in either hand
Graigar Leeb Hardness Tester Meter Gauge MH310 Measure Metallic Materials,HRB, HRC, HV, HB, HS, HL Sound & Noise Meters good man-machine communication interfaceBrand: Graigar Color: Yellow Features: MH310 leeb hardness tester with wide measuring range. It can measure the hardness of all metallic materials. Direct display of hardness scales HRB, HRC, HV, HB, HS, HL and three types of strength values immediately. Seven impact devices are available for special application. Automatically identify the type of impact devices, and with the user calibration function. Test at any angle, even upside down. Large memory