Review on The Ultimate Garmin HRM-Tri Heart Rate Monitor: Track Your Performance with Precision by Guerdon Draper

Assembly was very simple, works great. Heart rate syncs every time with no issues. The only downside is that the strap gradually loosens as you swim. At least once a week I swim 2 miles straight in a 25 meter pool and after about 1.5 miles I have to either stop to pull myself up or push off the wall with less intensity. I use mine with the 920XT and love it. Update 09/04/2016: The monitor still works perfectly, however the strap in the link wears out quickly even after the flushing/cleaning tips have been followed. After about four months (about 2.75-3 hours swimming in the pool per week) I'm not sure how long it will last. Try asking Garmin for advice.