Echo J12 Cycle Computer Manual 'link' -

**The Set Button (Small/Recessed

: Choose between KM/H or M/H by pressing the front MODE button. Confirm with the SET button. Wheel Circumference (C-Value) : The screen will show a 4-digit number (e.g., 2155). echo j12 cycle computer manual

Proper alignment is critical. The Echo J12 uses a magnetic reed switch. If the magnet passes too far from the sensor, you will get no signal. **The Set Button (Small/Recessed : Choose between KM/H

Write your wheel circumference (e.g., 2155) on a small piece of tape and stick it under the computer mount. You’ll thank yourself next time you change batteries. Proper alignment is critical

For cyclists, data is king. Whether you are a weekend warrior tracking leisurely rides or a dedicated commuter monitoring your daily mileage, a reliable cycle computer is an essential piece of kit. Among the budget-friendly options that have gained popularity for their simplicity and no-nonsense functionality is the Echo J12 cycle computer.

: If you cannot measure, a typical 700x23c tire uses a circumference value of approximately 2105mm .