The difference between the 3.858 version of the valentine one radar and the latest version the Valentine One 3.863 is:
The upgrade from .858 to .863 was the result of some hardware changes due to changes in parts vendors there is no performance differences between .858 and .863.
I am assuming .851 had no performance upgrades, all hardware changes
__________________ Valentine One Radar
Laser Pro Park LPP Dual Head
Laser Mask (4 head)
Bel 980 |