Polar are an established company who have catered for the heart monitoring needs and improvement of health and fitness for all athletes in all disciplines since 1977.

The Polar CS300 Heart Rate Monitor is a cycling computer and fitness monitor all in one, providing valuable feedback on or off the bike.

The wireless speed, distance and heart rate on the CS300 provides for proper pacing during training, or cardio-focused workouts. Calorie expenditure, fitness test, and automatic target zones based on how the body feels each day makes the Polar CS300 the perfect solution for cross-trainers, triathletes and fitness cyclists looking to stay in shape.

The Polar CS300 comes with a variety of features:

• Wireless Polar CS speed sensor - New advanced sensor measuring the cycling speed.
• Cycling Energy Output - Tracks the cycling workload as kcal/h and kcal/km.
• Estimated Time of Arrival (ETA) - Enables you to foresee the time of arrival based on your cycling speed.
• SpeedPointer - Indicates the relation between current speed and average speed.
• ZonePointer - Makes it easy to stay in your target zone.
• Polar OwnCal - calorie expenditure with percentage of fat burned.
• Polar Own Code - coded transmission that eliminates cross talk with nearby exercisers.
• Polar OwnZone - Determines personal heart rate limits for a training session.
• Wireless ECG accurate heart rate.
• Polar Fitness Test with OwnIndex - Measures your fitness level in 5 minutes.
• Heart Rate & Cadence-based target zones with visual and audible alarms.
• Exercise set with extended exercise profile.
• Maximum & Average heart rate of total exercise.
• Exercise Date.
• Trip distance.
• Odometer (1/2 and total).
• Speed (current, average and max).
• Wheel size settings for two bicycles.
• Graphical comparison of two values.
• Autostart/stop.
• Automatic display scroll.
• Speed sensor installation for different fork shapes.
• Transfer exercise data from wrist unit to Polar Personal Trainer web service via Polar WebLink (SonicLink).
• Edit wrist unit settings with Polar UpLink Tool and transfer them to your Polar product (UpLink).
• 14 exercise files (with summaries).
• Exercise file info page with date and time.
• Total Exercise Time and time in target zone.
• Target zone limits.
• Average & Maximum heart rate.
• Last OwnIndex.
• Weekly history.
• Backlight.
• Easy start (setting wizard).
• Over-sized display.
• HeartTouch, button-free operation of wrist unit.
• User configurable displays.
• Sound volume level setting.
• Double antenna (longer range, less disturbance).
• KeyLock.
• Time of day (12/24h) with alarm.
• Date and weekday indicator.
• Dual time zone.
• StopWatch.
• Exercise reminder (visual/alarm).
• Alarm with snooze.
• Low battery indicator.
• Water resistant 50m.
• Includes a Polar WearLink™ 31 coded shest transmitter (changeable battery), chest strap and a Bike mount.