For whatever it's worth...
To test for functionality the FX Chrono: Set the "profile" in the FX app to "nerf", the lowest velocity range. Get a larger drink-straw and form aluminum-foil wrap into small balls. Place the straw over the FX Chrono as you would with a barrel and blow the aluminum balls from the straw. Velocity should be anywhere from a few fps to over 100pfs.
What can you do with this? Not much. Just to get an idea how it works and the angle of detection.
To test for functionality the FX Chrono: Set the "profile" in the FX app to "nerf", the lowest velocity range. Get a larger drink-straw and form aluminum-foil wrap into small balls. Place the straw over the FX Chrono as you would with a barrel and blow the aluminum balls from the straw. Velocity should be anywhere from a few fps to over 100pfs.
What can you do with this? Not much. Just to get an idea how it works and the angle of detection.