Question

Which of the following technologies can work with another portable device to monitor your THRZ?

Answer 1

The answer would be : Chest strap
In order to monitor your Target heart Rate Zone, the most common method is by using a heart monitor (the portable device) to measure your heart rate during various types of activities. In order to keep the heart monitor in place during the your activities you could use a Chest Strap.

Answer 2

Chest straps

Step-by-step explanation:

A heart rate monitor consists of two components, a transmitter connected to a belt worn around the chest, and a receiver used on the wrist like a watch. As the heart beats, an electrical signal is conveyed through the heart muscle in series for it to incur.