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Bike Computer Bicycle Speedometer Odometer Temperature Backlight Water Resistant for Cycling Riding Multi Function This cycling computer, easy to install and operate, measuring both speed, distance, riding time, is a perfect tool for your riding training. Features: 2.7-inch large screen display system with touch button design for convenient use. Main bike modes: SPD, AVS, MAX, DST, ODO, CAL, PRM, RT, TT, RAT, etc. Small size and lightweight, as a bicycle speedometer and odometer, measuring speed, distance and riding time. Allow two sets of wheel diameters and other data for bicycle A and bicycle B. Speeding alert for your riding safety, low-voltage and maintenance reminder function designed for long-distance cycling. Wide range of application including bicycles, electric vehicles, even motorcycles. Suitable for vehicles of 5.2" to 52.5"(wheel diameter: 10~99.99cm). Riding in a rainy day is ok, but not soak in water or put in rainstorm for a long time. Specifications: Material: ABS Power source: 1 * CR2032 battery Item size: 4.8 * 7cm / 1.9 * 2.8in Item weight: 40g / 1.42oz Package weight: 96g / 3.4oz Package size: 10 * 10 * 5cm / 3.9 * 3.9 * 2.0in Package List: 1 * Cycle Computer 1 * Bracket 1 * Induced Magnet 1 * Cadence Sensor 1 * Rubber Slice 5 * Cable Ties 1 * User's Manual(English)