INSIZE 3520-50 数显内径千分尺 (25-50mm/0.001mm)

Range:25-50 mm
Graduation 0.001mm
Accuracy: ±6μm
Button function: on/off, set, mm/inch, ABS/INC, data output
Data output
SR44 or LR44 battery, automatic power off
Ratchet stop
Carbide measuring faces
Optional accessory: data output system, 
setting ring (code 6312)

datasheet