Insize 2197, LARGE RANGE DIGITAL RADIUS GAGE, R1(4-590″/100-1500mm), R2(4-590″/100-1500mm), 697409778087

Resolution .001″/0.01mm
Measure radius of internal or external arcs
Buttons: on/off, hold, mm/inch, s(select jaws), zero
Display can be rotated by 320?
Supplied with 4 jaws for different sizes of arc
Battery CR2032, automatic power off(time is adjustable)