First of all, thanks to Mr. Brandon Davey for his quick response and help.

Labradar delivers what promises. My goal was the tracking file (.CSV) of each shot (time-distance-speed) at 1 ms intervals.

Two minor drawbacks:

1.- I couldn't get the android app to work. I've tried to no avail with three different devices running different android versions. I hope a new firmware/app versions will solve the problem.

2.- Without a card, Labradar does not allow to download data to the computer.

3.- The card reader is a little bit picky with the card. The manual does not specify card's maximum size nor recommend any particular card. Many people complain about it. None of my cards worked. I've bought 4 cards in a row and fortunately all 4 work fine and are not expensive. See pictures and links:

Sandisk ULTRA SDHC UHS-I 32 GB

https://www.amazon.es/gp/product/B08GYG6T12/ref=ppx_yo_dt_b_asin_title_o00_s01?ie=UTF8&psc=1

Sandisk ULTRA SDHC UHS-I 16 GB

https://www.amazon.es/gp/product/B0143RTB1E/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

Sandisk Extreme SDHC UHS-I 16 GB

https://www.amazon.es/gp/product/B013CP3JDO/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

Verbatim Premium microSDHC -I 16 GB

https://www.amazon.es/gp/product/B00CBAUIEU/ref=ppx_yo_dt_b_asin_title_o00_s01?ie=UTF8&psc=1

I would strongly recommend it.

Setup was pretty good, though it took some referencing the instructions a few times to get the settings right. Probably unavoidable since it's a high tech product. Only irritation was it not capturing all the shots unless I used a remote microphone. Should probably include that in the instructions and standard package.

First let me start by saying Longshot target camera is the place to go. I wish I could remember the gentleman’s name that answered the phone but he was great answered questions n told me when I could expect my radar. As for my labradar. LOVE IT! Takes some gettin use to but vids on YouTube helped a ton!!!

The first use of the LabRadar was an such a stark contrast to the optical style chronographs. Out perform in every aspect, and provided a great data set. A perfect tool for load validation and load development!

I shoot mostly rimfire and have found Lab Radar to work perfectly for me. I would recommend the auxiliary battery.