Polar Hear Rate Monitor FT60F Lilac Female Defibrillation 3 MHz) * Shipping Carton The unfolded towel measures 3 MHz) * Shipping Carton Size: 12 L x 10 W x 6 H * Easy to clean with isopropyl alcohol In Polar software or during strength training heart rate can be displayed as a graphical trend * HR based target zones with visual and audible alarm * You can define your target zones for a training session based on heart rate to help define the right intensity When you are out of the preset zones the training computer will give a visual and audible alarm * HRmax (user set) * Manual target zone : bpm % * This feature enables you to define the target zone as you want and is suitable for your training