Insize 1189-150B, DIGITAL ARC RADIUS CALIPER, .2-6″/5-150mm, 6928640302480

Resolution: .0005″/0.01mm.
Measure the radius of arc less than half round.
Buttons: on/off, zero, inch/mm.
Automatic power off, move the digital unit to turn on power.
Battery CR2032.
Data output.
Made of stainless steel.