I emailed Alina Hussey firstname.lastname@example.org
of Vectronix with just that question. The PLRF05 does not have an inclinometer so the reading you get is simple line of sight distance. For all the power this unit possesses, I have decided to go with the G7 BR2 Unit. I have been reading every review I can find on it, have spoken with Arron Davidson and a couple of other guys using them, and everyone tells me it can range a rock the size of a 50 gallon drum, or a deer, out to 1200 yards in direct sunlight. That capability, coupled with the ballistic calculations has convinced me to try that one.
I really like the range the Vetronix unit is getting, but packing around a weather station and PDA for calculations is too much equipment and time involved putting the shot together. I want to simplify!