PRO Digi Wireless Cycle Computer User Manual

1. Main Unit Setup

Figure 1: Diagram showing the main unit, sensor, and magnet installation points on a bicycle.

Buttons and General Settings

MODE Button: Used to switch between function screens.
SET Button: Used to confirm settings or reset data.

Wheel Circumference (a)

To set the wheel circumference, press the MODE button for more than 2 seconds to enter the general mode setting. The circumference digits will flash. Press the SET button to change the flashing digit. Press the MODE button to move to the next digit. Once all digits are set, press the MODE button for more than 2 seconds to confirm the setting.

Popular Tires Circumference Table

Wheel Size	Circumference (mm)
18 Inch	1436
20 Inch	1596
22 Inch	1759
24x1.75	1888
24 Inch	1916
24x1 3/8	1942
26x1.0	1973
26x1.5	2026
26x1.75	2070
26x1.9	2089
26x2.0	2114
700x20C	2114
700x23C	2133
700x25C	2146
700x28C	2149
700x32C	2174
700x40C	2224

2. Function Screen

Figure 2: Diagram showing the display with various function indicators.

DST: Trip Distance
RTM: Riding Time
AVG: Average Speed
ODO: Odometer (Total Distance)
Speed Pacer: Indicates if current speed is above or below average speed (▲ or ▼).

3. Reset Operation

Figure 3: Diagram showing the reset process.

To reset Trip Distance (DST), Riding Time (RTM), Maximum Speed (MAX), and Average Speed (AVG) to zero, press the SET button for more than 2 seconds when the display shows DST, RTM, MAX, or AVG.

4. Power Auto On/Off

Figure 4: Diagram illustrating automatic power on/off.

The computer automatically turns on when it detects wheel rotation. If no signal is received for 4 minutes, the computer will automatically turn off to save battery power. To manually turn it on, press any button.

5. Low Battery Indicator

Figure 5: Diagram showing the low battery symbol.

When the battery symbol (⚡) appears on the display, it indicates that the battery is low and needs to be replaced soon.

Battery Change

Before replacing the battery, record your ODO (Odometer) data as it will be cleared during the process. The computer uses a CR2032 battery. To replace it, open the battery cap on the back of the unit, remove the old battery, insert the new CR2032 battery with the positive (+) side facing up, and close the cap securely.

Precautions

Do not disassemble the computer.
Do not expose the computer to extreme temperatures or direct sunlight for extended periods.
Clean the computer with a soft, dry cloth. Do not use chemical cleaners.
Ensure the sensor and magnet are correctly aligned for accurate readings.
The computer is water-resistant, but not waterproof. Do not submerge it in water.

Troubleshooting

Problem	Possible Cause	Solution
No display	Battery low or dead	Replace battery.
Incorrect speed/distance	Sensor/magnet misalignment	Adjust sensor and magnet position. Ensure magnet passes within 5mm of the sensor.
No signal	Sensor too far from computer	Ensure computer is mounted within 60cm of the sensor.
Display freezes/malfunctions	Static electricity or interference	Remove battery for 10 seconds and reinsert.
Automatic start/stop not working	Sensor/magnet issue or computer not detecting movement	Check sensor and magnet alignment. Ensure the computer is in an active mode.
ODO data cleared after battery change	Normal operation for this model	Record ODO data before battery replacement.

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