Multi-functional cycling computer will track cycling data like current/maximum/average speed,trip distance, cadence,heart rate, temperature etc.Heart rate mode with current heart rate indicator,which can monitor our heart rate during cycling to ensue our safety. 2.5'' LCD large screen provide clear and crisp reading, enjoy your pleasant cycling trip Features: 3-in-1 cycling computer with bike,cadence and heart rate mode. Heart rate mode with current heart rate indicator,which can monitor our heart rate during cycling to ensue our safety. Track and display speed,time,distance,trip time and multiple datas in data instantly. With backlight design,provides high visible during the day and night. 2.5'' large LCD screen for clear and crisp reading during cycling. Easy to install onto the handlebar with the mount and cable ties provided. IP65 water resistant body allows for rainy day riding. Suitable for 24-28mm bike handlebar. Functions: 2 Bike System Current/Maximum/Average Speed Trip Distance Auto Trip Timer Service Reminder for Bike 1&2 Speed Comparator Speed Tendency Odometer Save Function for Bike 1&2 Total Distance for Bike 1+Bike 2 Current/Maximum/Average Cadence Current/Maximum/Minimum Heart Rate Heart Rate Zone Alert Calories Counter Fat Burnt Digital Clock with 12/24 Format KM/M Selection Temperature with C/F Selection Auto Start/Stop Auto Wake-up Auto Power Off EL Backlight Specifications: Color: White/Black (optional) Material: ABS Waterproof: IP65 Power source: 3* 210mAh CR2032 battery (included) Computer dimension: 75*50mm/3*2in Package weight: Approx. 202.3g/7.1oz Package List: 1* Bicycle Computer 1* Heart Rate Sensor 1* Speed and Cadence Sensor 1* Chest Strap 1* Bracket 1* Speed and Cadence Magnetic Screw 8* Cable Ties 3* CR2032 Batteries 1* Instruction