About this item

The ELECROW PCB Ruler 2.0 is a multifunctional reference tool made from PCB material, designed for electronics hobbyists, PCB designers, and makers. It combines measurement, component reference, and layout utility all in one compact board. As soon as you start working with surface-mount parts—SOT, SOT23, QFN, TQFP, etc.—you realize how hard it can be to visualize size. This ruler gives you physical footprints of common packages so you can compare with real components. It also includes guides for trace widths, font sizes, and hole diameters. Made from standard-thickness PCB material, the ruler is durable and stable. The markings include both metric and imperial scales, useful when you need to check pad spacing, trace clearance, or general layout dimensions. It’s ideal to keep at your desk for quick reference — useful when ordering parts, spacing traces, designing PCBs, or just checking measurements. The ruler also doubles as a reminder of common component sizes, trace widths, and font height in silkscreen, which helps avoid mistakes in PCB layout. All in all, it’s a simple but surprisingly useful tool that complements CAD tools and measurement instruments.