Affordable Heart Rate Monitors
Keep check on your body's performance during Cycling, Running and Triathlon
Whether your training for a specific event, or simply wish to maintain a level of fitness, a HRM can help. Essentially these devices track your current heart rate, which is an indication of how hard your body is working during exercise. By listening to your body, you can streamline your riding & racing, as well as keep a check on any potential health problems.
Some of the products here may also feature in my Computers, GPS and Watch sections, as many have multiple functions. What they share in common is the HRM function, so you can keep an eye on your heart's activity during exercise.
As with those products, please read independent reviews, and check Youtube for actual customer testimonies prior to buying - it'll hopefully save you from wasting your money on an unreliable HRM.