Insize 1128-200, DIGITAL INSIDE GROOVE CALIPER, .39-8″/10-200mm, 6928640392740

Resolution .0005″/0.01mm
Measure diameter or distance of grooves
Buttons: on/off, set, inch/mm, preset(+,-)
Automatic power off, move the digital unit to turn on power.
Battery CR2032. Data output.
Made of stainless steel.