Insize 1525-500EWL, WIRELESS ELECTRONIC CENTERLINE/EDGE TO CENTER CALIPER, .4-20″/10.5-500mm, .0005″/0.01mm, 6940561971446

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