Practical Applications & Tips
Electronics & Component Sizing
Measure SMD components, resistor lengths, and PCB spacing directly on screen.
Watch Straps & Jewelry
Measure watch band lug widths (18mm, 20mm, 22mm) and ring diameters accurately.
Frequently Asked Questions
How can I ensure millimeter accuracy on my monitor?
Click the "Calibrate" button and align any standard credit card (85.6mm) to the guide box.