Garmin Heart Rate Monitor Not Reporting Accurate HR Anymore With my first Garmin Edge 305, I got the cadence and heart rate accessories. Cadence is still humming along, but the heart rate monitor has been not accurately reporting heart rate over the past couple months. 

Two battery changes and various attempts to wet the contacts and my skin beneath have not resurrected the reliability of the heart rate monitor strap.

Do you all have any further suggestions to try to get the Garmin Heart Rate Monitor working properly again, or is it time to just bite the bullet and buy a replacement heart rate monitor strap. If so, another Garmin-branded one or a different ANT+ heart rate monitor?
Given the battery changes, if you haven't washed the strap, try doing that, first with soap and water, then wipe with isopropyl alcohol. If you get no different response, replace the strap. BTW, I recently had to replace my Edge 305 because the PC drivers were blue screening my Win 7 PC. If you use the Garmin software at all, you might consider an overall upgrade. In addition, they've changed the design f the Garmin HR strap, so if you do decide to replace it, it will be with the newer soft strap, not the same as your original one.