SunDing SD - 581A Wired Bike Computer Bicycle Accurate Speedometer - Black - 4F74741912

Descriptions:
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:
- Precise measurement. Display your current speed, average speed, max speed, time, trip time, distance, etc.
- Able to set km/h or m/h unit, 12 hours or 24 hours clock mode by yourself.
- Old-fashioned wired design for maximum reliability. Avoid electromagnetic interference from your phone or other radio signals.
- Powered by one 65mAh AG10 battery. Ensure long-time endurance.
- Lightweight and compact. A great tool for outside cycling.

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