I have always wondered what is safe... sometimes my heart rate goes high and I get scared while working out.
Garmin Unisex Forerunner 235 Gps Heart Rate Monitor Watch
Pyle Sports Heart Rate Monitor Watch with Step Counter, Calories Expenditure and Pc Link >>> Want to know more, click on the image.
Heart Rate Monitor
Find Your Heart Rate Zone | He and She Eat Clean
Clean Eating Lifestyle
Oregon Scientific SE138 Strap-Free Heart Rate Monitor -- Learn more by visiting the image link.
Pyle Sports PHRM20 Marathon Heart Rate Watch with USB and 3D Walking/Running Sensor -- More info could be found at the image url.
Topeak PanoBike Heart Rate Monitor >>> Details can be found by clicking on the image.
Polar FT7F Black/Gold Heart Rate Monitor ** You can get more details by clicking on the image.
TOOGOO(R) Chest Belt Strap for Polar Wahoo Garmin for Sports Wireless Heart Rate Monitor * Read more at the image link.
Garmin Forerunner 35 GPS Watch + Heart Rate Monitor