Step 1
Hold the mobile support (part underneath the dial) with your left hand.
Step 2
Move it slowly clockwise until it touches the reference block or the bottom of the dial gauge. This should unlock your Mitutoyo gauge.
Step 3
Press the “ON-OFF” button on the dial gauge. Wait 30 seconds for it to fully boot. Press the “MODE” button. This will unlock the dial and gives you a measurement.