I don't have one myself, but my brother-in-law has a Garmin. He uses it to mark his "hot spots", which cuts down on time spent searching for the darn things year after year!! I Don't know the model number, but he's had it a few years, so it's most likely been upgraded to a different model by now anyway. sorry, not much help there, but he's had a couple others, and likes the Garmin the best.