Polar CS400 is a cycling computer for demanding cyclists. It has plenty of features to guide and control your ride; e.g. an oversized 3-row LCD display with personalized view options and incline measurement. With cycling economy you can foresee your calorie expenditure and measure how economical your training is. Includes Polar ProTrainer 5 - Professional training software. A sophisticated software designed to provide you with deep understanding of your training and functions as a stand-alone Windows software in a PC. Use the software to plan your training sessions in advance, define your training zones for each training phase, and upload the settings to your Polar product. After your training, you can analyze the results closely with versatile graphs that you can customize according to your unique needs. A customizable calendar provides a complete training log where each exercise file automatically creates a diary entry with all your training data. Use different reports for long-term development follow-up.