Insize 1177-500EWL, WIRELESS ELECTRONIC BACK-JAW CENTERLINE CALIPER, .8-20″/20.5-500mm, built-in wireless, 6940561971408

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