(Fitness Experts) Heart Rate Monitors. Have how do they work?

I workout on a regular basis and I am interested in purchasing a heart rate monitor. I want to know how they work and if you have had one what was the best brand/manufacturer. Thanks in advance for the help.

(Fitness Experts) Heart Rate Monitors. Have how do they work?

I have one. It includes a chest strap that picks up your heart rate and transmits it to the watch. You can program the watch to warn you if your HR is going too low or if you%26#039;re going too high. There should be a Timer and a Stop Watch feature, and you can record your workouts, which show how high your HR got and what your average HR was during the workout. It%26#039;s a great tool for trying to stay within your target area.