- Polar F2 Heart Rate Monitor WITH CHEST STRAP TRANSMITTER - One button operation with bold numbers, adjustable high/low target zone with visual and audible alarm. - ACCURATELY tracks heart rate and exercise time continuously - Enables you to check the average heart rate and total time after each session - Excellent, like new condition - Complete with original box and instruction manual Check out a recent independent study comparing the accuracy of this type of device (chest strap monitors) to BitFit, Applewatch and other more recent fitness (wrist) watches and devices - http://www.livescience.com/56459-fitness-tracker-heart-rate-monitors-accuracy.html Please call Michael 613 228 0195