If you're serious about your arrows, the Arrow Analyzer from Bearpaw USA is for you!
This amazing device is a spine tester, grain scale, and straightness checker all in one. Plus, has an easy to read digital screen, or connect to your computer or laptop (USB connection) to use with free downloadable software. The Arrow Analyzer gives you a detailed readout of the static spine, gram & grain weight, and straightness tolerance of parallel arrows.
The BearPaw Arrow Analyzer works with all arrow materials of carbon, wood, and aluminum up to 23/64" diameter and at least 26" in length. Measures in 1 grain increments from approx. 16 grains up to 1,541 grains.
For measuring static spine, the Arrow Analyzer displays both industry standards. AMO spine, common for wood arrows, that is displayed in pounds (approx. measures in a range of 11-125#). ASTM spine (American Society for Testing and Materials), common for carbon and aluminum arrows, that shows deflection in a decimal (approx. measures from 2500 to 250 deflection).
Please note, you can view your readout on the Arrow Analyzer display, or you can view it on your PC or laptop. Viewing the readout on your PC or laptop requires a software download from the Arrow Analyzer web site.
Very compact and easy to transport in the provided carrying case. A great device that allows you to find the stiff side on your wood, carbon, or aluminum arrows, giving you more consistent arrow flight.
Use it before you cut your arrows so you can determine how straight the ends of your arrows are. Build the straightest arrows ever!
Weight match your arrows for shooting competitions and serious bowhunting!
You can also weight your components, such as screw-in or glue-on points/broadheads, or inserts. Minimum weight is 16 grains. Maximum weight is 1500 grains.
Measures approximately 26 ¼" long. Comes with a protective carrying case with padded foam interior. Includes instruction booklet, and USB cord for connecting to PC, laptop, or notebook.