SUNDING SD-581A Bike Wired Computer Speedometer Odometer Cycling Bicycle Waterproof Measurable Temperature Stopwatch, SUNDING SD-581A

This speed and cadence sensor accurately track and transmit essential cycling data for you, giving you real-time monitoring of your outdoor exercise.
Main Features:
1. Precise measurement. Display your current speed, average speed, max speed, time, trip time, distance, etc.
2. Able to set km/h or m/h unit, 12 hours or 24 hours clock mode by yourself.
3. Old-fashioned wired design for maximum reliability. Avoid electromagnetic interference from your phone or other radio signals.
4. Powered by one 65mAh AG10 battery. Ensure long-time endurance.
5. Lightweight and compact. A great tool for outside cycling.

Specifications:
1. Battery: built-in 65mAh AG10 battery
2. Riding time: ranging from 0:00:00 to 99:59:59
3. Bicycle spoke diameter: 2mm and less
4. Operating temperature: -20 Deg.C to 70 Deg.C

Package includes:
1. Bike computer * 1
2. Cable ties * 1
3. English manual *1
4. Magnet *1
5. Sensor +mounting shoe *1