Thump-thump, thump-thump
Since I had a FlightDeck, all I needed was a basic HRM. I went with a Polar S120 a couple of years ago. I mount it on a handlebar mount right next to the FlightDeck and it tells me what I want to know, my current heart rate. At the end of the ride I can get the max and average heart rate for the ride. Reasonable cost, good quality. Works for me.
Ride on! Thump-thump.
-Spoke