The Screen Calipers are the unique on-screen measurement tool, that let you measure anything on your computer screen with ultimate accuracy.
The Screen Calipers floats above any other application so you can measure anything on your screen:
Web Designers: measure pixel perfect HTML layouts
Graphic Designers: measure photos and illustrations
Engineers: perfect for CAD, measure blueprints, plans and architectural drawings
Education: teach students physics, biology or maths
Medicine: measure x-rays or EKG, ECG printouts
Industry: use with any manufacturing system
Microscopy: connect your microscope and measure magnified items
Cartography: use with any mapping software
And more: there is no limit to the uses

The Screen Calipers have a unique advantage over other on screen rulers due to their unique shape. Pixel-perfect accuracy is ensured every time simply by aligning the Screen Caliper's ruler points around an object. The Calipers can be used with any program as they float over other applications allowing quick and easy measurements