ZERO EDGE PROTRACTORS
The Zero Edge Protractors enable the zero line to be placed directly next to the evidence for accurate measurements. Featuring large, easy-to-read markings and numbers on a non-glare surface for easy photography. Ideal for blood spatter and bullet trajectory investigations, it is a great addition to any string or trajectory kit.
Protractor with Laser Mount, 12" -Option
Designed for use with our high-powered BP-1 Trajectory Laser, this twelve-inch protractor is used to find and photograph angles quickly and easily. The adjustable arm easily slides from 10 degrees to 170 degrees and can be locked into place once the correct angle is determined. The laser beam creates a consistent straight line without the possible sag of string, thus increasing accuracy.