Rebound Hardness Tester

AllGIFsStickersMemes
a person is writing on a piece of metal with a pen while using a machine .
a device that says 65.9 on the screen
a blue and black device with a screen that says 65.9
a person is holding a pen in front of a tmx251 calculator .
a metal detector is sitting next to a metal detector on a white background .
a device with a screen that says omega on it
a device that says xon detecotb on the bottom
a dataview for hardness tester screen shows a graph of average values
    a device that says 58.2 on the screen
    a device that says 47.9 on the screen next to a metal object
    a device with a screen that says 63.7 is sitting next to a metal object .
    a metal detector is sitting next to a metal object and a phone .
    a digital thermometer with a red case shows 47.9
    a black case with a red device in it