MeasuPro Wireless Bicycle Computer, Heartrate Monitor, Speedometer, Odometer, Calorie Tracker Built-in heart rate monitor, bicycle speedometer, timer, odometer, and calorie tracker. Lightweight, durable, and water resistant with a simple user interface. Wireless transmission between the sensor and unit makes use hassle free. Tracks and displays heart rate readings in 5.2KHz. Bike trip information displayed as current, max, or average data readings.