See Options
Need help? Ask our experts.
Review Summary
Black background with white markings
Durable plastic
1/16"
Marked by degrees
Large numbers every 10 degrees
Center hole and holes at all four corners
High contrast for maximum legibility
Measuring, alignment, educational, and industrial use
12 x 12" (304.8 x 304.8mm)
This durable measuring board is made from 1/16" thick plastic, ensuring long-lasting performance in any workspace or classroom. Measuring 12 inches by 12 inches, it features a black background with bold white markings for excellent contrast and easy readability.
The board is graduated by degrees, with large number designations every 10 degrees for quick and accurate reference. Designed for convenience, it includes holes in the center and at all four corners for secure mounting on various surfaces. Ideal for educational, industrial, or professional use where precise angle measurement is essential.
How to Use:
Securely anchor the Compass Rose device to the ground in a location central to the crime scene
If possible, drive a steel spike into the ground so that this location can be easily found at a later time with a metal detector
Also, record the exact GPS coordinates of latitude and longitude of the center of the Compass Rose using a GPS device or phone app
Locate Magnetic North with a compass and rotate the Compass Rose so that 0/360 degrees is pointing North
Measure the angle and distance from the center of the Compass Rose to each object of evidentiary interest at the crime scene
If evidence is found above or below the surface of the ground also record this information
A detailed sketch can now be made of the crime scene using the information recorded above