Bike Computer with Stopwatch, Wired Odometer and Speedometer, Waterproof

Introducing the SD-581A Bike Computer — a reliable wired odometer, speedometer, and stopwatch designed to conquer all weather cycling. Its compact 44 mm by 49 mm by 15 mm body houses a clear 1.5-inch display, making it easy to read essential stats at a glance whether you’re commuting, training, or sprinting for a personal record. The wired stopwatch ensures precise timing, while the odometer and speedometer help you monitor distance and pace, empowering you to train smarter and ride more confidently in any condition. Built to withstand wet roads and spray, this bike computer stays functional when others falter, so you can keep riding with confidence.

The SD-581A kit is ready for action right out of the box, including the base wired sensor, magnet, battery, manual, and the main body. It supports 15 practical functions such as current speed, trip distance, maximum speed, average speed, elapsed time, and a clock with 12/24-hour options. Additional handy features include auto on/off, maintenance alerts, scan mode, and effortless tyre circumference and speed scale settings. This complete cycling solution helps you track progress, adjust training zones, and stay on top of routine maintenance—no guesswork required.

Activation notes: This product ships in standby state. Please activate it before installing and using it to ensure accurate readings from your very first ride. Wish you a happy life, thank you.

Benefits & Tips

• Train smarter with interval pacing by using current speed and elapsed time to structure workouts.
• Monitor progression over time with trip distance, max speed, and average speed to measure improvement.
• Ride with confidence in all weather—the waterproof design keeps readings reliable even in rain or spray, while maintenance alerts help you keep the device in peak condition.

Product specifications

• Model Number: SD-581
• Screen: 1.5 inches
• Size: 44 mm × 49 mm × 15 mm
• Battery: AG10
• Functions: 15 functions including current speed, odometer, trip distance, max speed, average speed, elapsed time, clock (12H/24H), scan, comparator, auto on/off, maintenance alert, and more
• Waterproof: Yes
• Includes: Wired stopwatch and base wired sensor
• Accessories: Magnet, Manual, Battery, Body

Package includes:

• Body
• Manual
• Magnet
• Battery
• Base wired sensor

Warnings/Reminders

This product is in standby state; please activate it before installation and use to ensure proper operation.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

At intercyprus.com since 2002 — trusted for quality and reliability.