Polar T31 Coded Transmitter and Belt Set

Watch and heart rate monitor is versatile and durable enough for any sporting activity; designed for triathletes, serious runners, and endurance athletes
Unique sports profiles guarantee swift switch between sports; ZoneOptimizer coaches you to train at the right intensity, improving performance with downloadable endurance training programs
Unit provides heart rate information even in water with comfortable hybrid transmitter; Race pace function helps you cross finish line in time

Unique training benefit feature provides instant feedback after your workout. Comes with the New Polar H3 Heart Rate Sensor.
Helps you train at the right intensity and improve your run with personal sport zones and the Running Index feature
Compatible with s3+ stride sensor for running speed and distance, cycling CS speed and cadence W.I.N.D. sensors and the G5 GPS sensor

Easy-to-use heart rate monitor guides you to train at the right intensity
Includes H1 heart rate sensor chest strap for continuous, accurate heart rate. Uses coded transmission to avoid cross-talk with other heart rate monitors nearby.
Built-in Fitness test helps you can track and monitor your fitness improvement

Provides continuous, accurate heart rate to keep your fitness training simple
Smart Calorie feature uses your personal data to provide accurate calories burned
Includes heart rate chest strap made of soft fabric material that adapts to your body shape. Requires and includes chest strap for accurate heart rate