1)   Cardio Calipers 3.3
The Cardio Calipers provide a fast and accurate way to measure electrocardiograms on a computer screen with pixel perfect accuracy. The Cardio Calipers are the perfect solution for EKG measurement, to measure Heart Rate, and any part of the complex.
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 2)   Easy Unit Converter 1.2
Easy Unit Converter converts temperature, length, area, volume, weight with a single button click. Easy Unit Converter includes about 50 most frequently used measurement units. This free tool is a handy help for everyone: a must have on your desktop
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 3)   Excel Unit Conversion Software 7.0
Convert units of measure in MS Excel. Convert length, weight, volume and temperature. Units include: inches, centimeters, millimeters, miles, kilometers, meters, yards, feet, pounds, kilograms, fluid ounces, ounces, grams, tons, quart, gallon, liter.
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 4)   WonderWebware.com Screen Ruler 2.0
This tool is designed and made for one single purpose - to help you to measure anything on your screen.
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