Designed for use with our high-powered BP-1 Trajectory Laser (see below), this twelve-inch protractor is used to find and photograph angles quickly and easily.
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Adjustable arm easily slides from 10° to 170°
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Arm can be locked into place once the correct angle is determined
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Laser beam creates a consistent straight line without the possible sag of string, thus increasing accuracy
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Protractor is also available in a kit, which includes both the protractor and the BP-1 Trajectory Laser
