I got me this (way too expensive) chest strap to buy everything in one device to have. My Garmin Oregon 450 has detected the belt immediately, the heart rate is properly stored in the Trackaufzeichung! So far I have the GPX imports only just into the Garmin Training Center which works well. I had no dropouts so far and find him also comfortable to wear. What bothers me is that you can adjust unfortunately no maximum pulse alarm at Oregon since, however, the belt for nothing.