Why Use Heart Rate Monitor If you are still thinking of getting a heart rate monitor, the following reasons might make you decide. Here are some of the reasons why people should use heart rate monitor: Fitness monitor: When people train, they need result and that result in one and only one thing: cardiovascular fitness. Since the belt chest contains sensor and a transmitter, and transmitters should have a receiver counterpart, the belt chest heart monitor needs a receiver in the form of the wristwatch. The receiver converts the data transmitted into a readable figure. Without the receiver, the belt chest heart rate monitor is useless. The doppler fetal heart rate monitor lets you know and hear the heart beat of the baby inside you while seeing the digital result on an LCD screen. It uses the same ultrasound technique that has been in existence and trusted by doctors for more than 3 decades so it is proven safe and effective. Most doppler fetal heart rate monitors are battery operated, lightweight, and very portable so you can carry it wherever you go. Polar has specific heart rate monitors for specific activity such as fitness, running, cycling, outdoor, team management, healthy living, and weight management. Polar also has different types of heart rate monitors that are suited for each type of user with different demands. For starters and for those whose demands are only to monitor their heart rate during regular exercise, Polar provides the F series. But either you use the one with a transmitter or not, you need not compare because both can give you the heart rate data you needed. Some special Reebok heart rate monitor models come with a cruise control training system that would automatically personalizes your target zone. Meaning, whether you are in a beginner, mid-lever or high intensity level, the Reebok heart rate monitor would adopt to your fitness level. It uses only the wrist-worn device that reads the electronic signal released by the heart through the fingers pressed on the device for a given length of time. The two-part heart rate monitor on the other hand is composed of the strap and the wrist unit. The belt strap reads the heart rate measurement and acts as a transmitter.