M3.1 bicycle computer can be used by road bikers and mountain bikers to track cycling stats. The edgy design supports an optional transmitter kit for cadence tracking.Riders can scan the data readings on a well-defined layout. The digital menu and 2-button control allow easy operation even when riding. M3.1 uses clip-on wheel sensors and digital wireless transmission for data collection. Other highlights include low battery indicators, data storage, second bike tracking, and wheel size configuration.M3.1 bike computer sports a sturdy, splash-proof body that will last you longer by staying safe in rains and muddy trails. M3.1 has an option for language selection from a list.Package Includes: Cycle Computer, Wireless Handlebar Bracket, 3V Battery, Power Magnet, Cable ties, and a Speed Transmitter w/ battery, Cadence Transmitter Kit, Ahead-Mount Specifications:D3 digital wireless (WL)Cadence transmission D3 digital wireless (WL)Automatic start/stopComputer low battery warningTransmitter low battery warning WLData storage during battery change (data + settings)Full text displaySuitable for two bikes (two configurable bike sizes)Wheel size configuration via tyre listDisplay backlightBike functions:Speed 199 kmh/124 mphTrip distance to 9.999,99 KM/MRide time 99:59:59 HH:MM:SSTime 12H-AM/PM-24HTotal distance 199.999 KM/MAverage (decimals) 2Max. speed (decimals) 2Clock (Bike 1/Bike 2) 9.999:59 HHHH:MMSpeed comparisonTrip section time/trip section distanceSecond distance counter, programmableTemperatureCadence functions:CADENCE OPTION WLCurrent/average/max. cadence WL Cadence Installation