Went to OpticsPlanet and ordered a ProChronoDLX after reading a positive review in American Hangunner mag. Of course, they said they had them and lied. After waiting two weeks, cancelled the order and got one shipped from Midway for less. For $125, this thing makes me glad i didn’t toss out another $500+ for. Labradar. Made in USA, only needs one 9 volt battery that lasts a long time, and is a quick and easy setup. Nicest feature is the built-in Bluetooth. It synced with my iPhone, and allows you to set up shot strings in advance, adds local weather and altitude, and provides standard chronograph data as well as power factor for my pistol loads. Sends data to my desktop after my strings are complete. I finally know that my 14” Colt Upper is 300fps faster than my 7.5”Sig Upper. Best $125 that I have spent in over 40 years of reloading