Don’t Just Guess; Know for Sure. The Health Mark Heart Rate Monitor which features 20 functions is the ideal training partner for conducting and tracking safe and efficient training sessions. The wide Silk Chest Strap which houses the transmitter provides comfort and freedom from skin irritation, and an excellent contact area for obtaining accurate heart rate readings. Preset functions allow you to establish heart rate parameters which alarm you when your heart rate climbs too high, as well as when your heart rate is too low to sustain an efficient workout. The wrist watch style receiver is attractive enough to be worn as an everyday watch. Available in red, blue and black the Body Tone Heart Rate Monitor is a ‘must have’ for getting in and staying in shape. Set apart from the competition by providing the only silk chest transmitter strap which eliminates the possibility of any skin irritation while allowing for a more comfortable fit, the ECG accuracy of this monitor is unmatched due to its larger transmitter with higher a sensitivity. The availability of 3 colors is an additional upside to this product.