FX Pocket Chrono V2

Anybody tried the new V2 of the FX Pocket Chrono?
I did buy one. My first impression was not good. Tried it indoors. It did read my .25 cal rifle, but not my .117 above approx. 500 fps. Only occasional readings below and nothing above.
Sent it back to the dealer. They tested it and found it OK, but it was picky on the location of the chrono. Must be ON the barrel, 5cm (2”) behind the muzzle. I tried that but with no luck.
Does these things require a large room and long distance for the bullet to travel?
Anybody having this chrono?
Rudy
 
Mine works the same as yours. Hit or miss with the 177, works great with the 25. I’ve only used it on my 20 yard basement range. Sometimes reinstalling the app gets it going for a bit but that doesn’t make sense. The unit always connects to my phone, it just doesn’t register the shot (blue light). The phone and app should not have anything to do with the unit picking up the shot.
 
i dont have the v2 but i do have the first version.

im guessing the app is the same?

go into the settings and lower the minimum return setting,(pic included)
right on the minimum return settings page it says you may need to lower the setting for small calibers.

Screenshot_20231110_101253_FX Radar.jpg