A digital protractor is more accurate than a handheld protractor and has useful features such as a screen displaying angle measurements. It consists of a moving arm and a small box with buttons and a display screen. The protractor can measure angles exactly and has a “Hold” button to save angles. It can also be plugged into a computer to transfer data and advise on miter and bevel angles for projects.
A digital protractor allows the user to measure angles much more accurately than a handheld protractor. The digital protractor is electronic and comes with a variety of useful features. Angle measurements in progress are displayed on the screen for the user to read and record.
Many digital protractors consist of a moving arm and a small box in the center that holds the buttons and display screen. The user places an edge along a straight line and adjusts the swing arm to line up with the next line. This creates the angle the user wants to measure. The results appear on the screen. For example, if one arm of the protractor was straight and the other was pointing up, the screen would show 90 degrees.
A regular hand-held protractor requires the user to align the ruler with an angle line, and wherever the second angle-forming line intersects the protractor, that number is the measure of the angle. The problem with this method is a higher chance of misinterpreting the angle. Even with the correct measurements, there is no way to measure angles that need to be precise and cannot be deflected by even a fraction of a degree.
The digital protractor can measure angles exactly, making it much more reliable. This is especially useful for carpenters or masons making cuts that need to line up and butt together. Those who perform mathematical calculations will find the protractor extremely useful in getting correct results.
Other features enhance the benefits of the digital protractor. Along with a screen that shows the angle being measured, the protractor often has a “Hold” button that allows the user to save the current angle while measuring or examining a different area. Other buttons may allow the user to adjust the protractor and temporarily set that angle to zero.
For those who need to transfer angles for later use, many digital protractors have a slot so they can be plugged into a computer. The data is then transferred from the digital protractor to the computer for use. They have other real world applications to them as well. Some digital protractors can measure and advise the user on which miter and bevel angles to cut when working on a project that involves a miter saw. The measurements can then be stored on a computer and used in the future when the same cut needs to be repeated.
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