Pro SCIO Manual Download Page 1

Release the 3 keys 

MTB 26 

(2080mm)

RD 700C (2110mm)

MTB 29 

(2260mm)

MTB 650B 

(2170mm)

Setting of second 

is to zero

Odo setting

Pairing OK

Pairing Error

 : means Setting button

 : means L button

 : means R button

Trip Mode 

Group

Cadence Mode 

Group

Heart rate Mode

Group

Power Mode

Group

Altitude Mode

Group

Temperature Mode

Group

L

Backlight turn On

Turn on backlight function

backlight 

ON

After 4 sec

backlight 

OFF

Backlight turn OFF

Release 

L  key

L

L

L

L

L

R

R

R

R

R

2

R

R

L

R

2

R

L

2

For waking up 

Press 

any key

Sleep mode

 

(All display will be into sleep mode after 15 min)

Demount and no signals

Must be Mount on bracket

12H mode

After 

15 min

Without 

signals

After 

2 sec

Get signals 

After getting 

all sensor

Blinking till getting all sensor sata

Power On/off

Data Reset

Backlight

Speed sensor signals

Casence 

sensor signals 

Heart Rate sensor signals

Power sensor signals 

Di2 gear sensor signals

Signals detecting 

EX: show Di2 information

It is paired, no got the 

signals even the sensor

timeout

After 

2 sec

It is not  Di2 paired, no got the signals

Signals

Got the sensor signals

It is Di2 paired, no got the signals

S

S

Data setting

Data setting
Sensor Pairing

Di2 Low Battery

mount 

bracket 

mount 

bracket 

Altitude Calibration

2

R

L

R

When Di2 low battery

Or

Once Battery < 25%

(Less than  25% for battery of Di2)

Pressing 

L or  R key, 

go back 

before status

L

R

L

L

L

L

1. BIKE1/BIKE2 SETTING

Update 

Old value

(No Power sensor or No offset function power sensor, no show the setting)

Update 

Old value

If no press R button, will not be update

L

L

R

R

R

R

L

1. BIKE1/BIKE2 

SETTING

S

L

General mode 

L

L

R

R

R

R

R

R

R

R

R

R

R

General mode_

Un-mounted bracket

  

Riding

 

mode

R

L

R

All clear 

Bike1/Bike2 Setting

R

L

R

or

Unit setting

R

Cmm setting

R

R

General Mode

OK!

Clock setting

L

L

L

L

L

L

R

L

R

R

R

L

Battery Change

HR target zone setting

R

R

L

Sensor Pairing

3

+

3

+

L
R

3

S

 Power meter calibration

Sensor Pairing

L

R

R

L

S

N

m

 : means Hold  N  button for m sec

WIRELESS

  C Y C L E   C O M P U T E R

1st

2nd

Popular Tires Circumference Reference Table

Wheel 

Circumference

R

L

2

+

each press of the button R or L will 

turn on the back light for 4 seconds.

“0”

038

Quick calibration

2

R

L

2

+

R

L

+

Wheel size

Circumference 

18 Inch 

1436 mm

20 Inch 

1596

22 Inch 

1759

ATB 24x1.75 

 1888

24 Inch 

1916

ATB 26x2.0(650B) 2099

700x38C 

2174 mm

27.5 Inch 

2193

28 Inch(700B) 

 2234

28.6 Inch 

2281

700C Tubular 

2117

700x20C 

2092

700x23C 

2112

700x25C 

2124

700x28C 

2136

Wheel size

Circumference 

Wheel size

Circumference 

Coin

3V battery 

CR2032

All clear   

1.  Hold down the R+L button and S button simultaneously for more than 3 seconds to initiate 

the computer and clear all data.

IMPORTANT: Be sure to initiate the computer before it is be used, otherwise the computer 

may run errors.

2.The LCD segments will be tested automatically after the unit is initiated.

3.Press button to stop LCD test, then the flickering " BIKE 1 ".

1-1. Bike Selection 

Press R button to choose Bike 1 or Bike 2 . Hold down the L button for more than 2 second to 

change to the unit setting screen.

1-2. Unit Selection  

Press R button to choose Km/H or M/H. 

1-3.Circumference data setting Bike1/ Bike2  

1. It provides 3 sets of default tire circumference value for quick setting (

RD 700C, MTB 26 and 

MTB 29,

 for Bike1 and Bike2).

2. You may change the value by yourself, too (2155 for Bike1, and 2055 for Bike2).

WHEEL CIRCUMFERENCE 

 

Precise Measurement (Fig a.) 

Roll the wheel until the valve stem is at its lowest point close to the ground, then mark this 

first point on the ground. Get on the bicycle and have a helper push you until the valve 

stem returns to its lowest point. Mark the second point on the ground. Measure the 

distance between the marks. Enter this value to set the wheel circumference.

Quick Table  (Fig b.): Get a suitable circumference value from the table.

1-4. Clock setting

Press the R button to select 12H or 24H. Press L button to  for change to next setting mode.

1-5. ODO data setting  

The function is designed to re-key in former data of ODO when battery is replaced. A new 

user does not need to set this data. 

1-6. Heart rate target zone setting

1. Press R button to turn ON target zone or OFF target zone Press L button to set range of 

target zone (UP limit/LOW limit) 

2. Press L button to select UP limit or LOW limit under setting range of target zone 

Press R button to adjust value for UP limit or LOW limit 

1-7. Sensor Pairing

1.Sensor pairing  Compatible with Di2/ Speed/ Cadence/ Heart Rate/ Power/ Combo  

2. If icon show up, the transmitters are paired; if not, you need to do the pairing again.

3. If you have problem with sensor pairing, it might be battery low power; check battery in the 

transmitter.

1-8. Power meter calibration

1. Power sensor is paired and Power sensor owns calibration (offset) feature 

2. Finished calibrating, Press S button to exit 

1-1.

1-2.

1-3.

1-4.

1-5.

1-6.

Fig.1

Fig.2

Fig.3

1-7.

1-8.

Fig.6

Fig.5

Fig.7

Fig.8

FUNCTION SCREEN 

(

Fig.

2

)

1. Quickly press this button to move in a loop sequence from one function screen to another.

2. Press R button for change function mode forward, Press L button for change function mode  

backward

3. Only showing paired sensor data 

BIKE 1/ BIKE 2 SELECTION 

Press the S button to enter/exit the Data setting mode.

Press the R button the change Bike 1/Bike 2.

GENERAL SENSOR PAIRING(

Fig.

3

)

Mount computer onto bracket or wake up computer from sleep mode, computer detects 

paired sensor, one sensor was not detected by computer, at the moment KEEP/UNPAIR will 

be out in the display, to choose KEEP that keeps the paired sensor ID, next time using the 

sensor we don't go to setting mode for paring the sensor, computer re-search the sensor in 

hold L and R button 2sec. to choose UNPAIR that cancels the paired sensor ID and removes 

stored data, Disappears the symbol of paired sensor in the display, next time you have to use 

the sensor, you need to go to setting mode for pairing the sensor. 

Suitable Fork Size:

  

12mm to 50mm

 (0.5" to 2.0"

) Forks.

    

Wireless Sensing Distance:  

70cm between the transmitter and the main unit.

Wheel Circumference Setting: 

1mm - 3999mm (1mm increment)

Operation Temperature: 

0

°

C ~ 50

°

C  (32

°

F ~ 122

°

F)

Storage Temperature: 

- 10

°

C ~ 60

°

C (14

°

F ~ 140

°

F)

Main Unit Battery Power:

 

3V battery x 1 (CR2032), battery operating life is about 2 

years. (Based on an average of 1.5 hours use per day)

Transmitter Battery Powe

r

:  

3V battery x 1 (CR2032). 

Dimensions and Weight  

Main Unit: 

41.78 x57.1x 41.78mm/ 30.10g

 

Transmitter:

 

35.8 mm x 34.8mm x14mm/ 13.9g

* The specifications and designs may be changed without notice.

BUTTON and NORMAL OPERATIONS

Functions

trIP data

    : Current speed 

1. The current speed is always shown on the upper display during riding.

2. The speed data are updated per second.

3. When you do not ride the bike for more than 4 seconds, the speed data will be 

reset to zero.

clock:

Clock Time 12H/24H  Alternative

1. When the user sets the clock time in Data Setting Mode, there are two formats for 

option-12H and 24H.

2. 12H means 12 hours. In this format, to AM or PM. 24H means 24 hours.

DISTANCE:

Trip Distance

1. Trip distance refers to the accumulated distance during a trip.

2. Whenever you reset the computer or change the battery, the trip distance record 

will be cleared.

RIDE TIME:

Riding Time

1. Riding time refers to the accumulated riding time of a trip.

2. Whenever you reset the computer or change the battery, the riding time record will 

be cleared.

3.The computer automatically starts measuring the riding time upon receipt of wheel 

signals. If you are riding your Bike, whenever you stop, the computer will continue to 

count the riding time for 4 more seconds to make sure there're no more wheel 

signals.

AVERAGE:

Average Speed

1. With this function, the computer will display your average speed during riding.

2. Whenever you reset the computer or change the battery, the average speed record will 

be cleared.

3. It'll display "0.0" if the riding time is below 6 seconds.

4. It's updated every second on condition that the riding time is over 6 seconds.

5. The computer will automatically reset the following data to zero once the riding 

time is over 100 hours or the distance is over 1000KM (or miles): riding time, trip 

distance, average speed.

MAXIMUM:

Maximum Speed

1. With this function, the computer will record the maximum speed you reach during 

riding. 

2. Whenever you reset the computer or change the battery, the max. speed record will 

be cleared.

odoMETER:

Odometer

1. With this function, the computer accumulates the total distance of the bike you ride.

2. The odometer data cannot be cleared by the reset operation.

Main unit 

No display

1. Is the battery dead?

2. Is there incorrect battery installation?

1. Replace the battery.

2. Be sure that the positive pole of the 

    battery is facing the battery cap.

Paired sensor 

symbol does

not be displayed

 or wrong 

displayed

1. Go to setting mode for pairing the sensor again

2. Please hold L and R button 2sec for 

repair,computer will automatically scan paied 

sensor again

3. Refer to the installation manual and correct the 

positions and gap.

4. Refer to "Wheel Circumference Measurement 

and Setting" and enter a correct value.

5. Refer to the installation manual and adjust the 

distance between the main unit and the sensor or 

adjust the angle of the sensor.

6. Replace the battery with a new one.

1. Does the paried sensor symbol disappear?

2. Does triangle of the pared sensor symbol

 disappear ?

3. Are the magnet and the Transmitter in the 

correct position? Is the gap between both 

parts correct?

4. Is the wheel circumference setting 

correct?

5. Is the sensing distance between the main 

unit and the sensor too long?

6. Is the battery for the sensor nearly 

exhausted?

1. Did you calibrate the altitude before 

riding?

2. Is the hole for measuring the air pressure 

on the bottom of the main unit clean?

1. Refer to "Overview of Button Operation" and 

calibrate the altitude before each ride.

2. Always keep the hole for measuring the air 

pressure clean. Do not poke anything into 

the hole to avoid damage.

Irregular 

display

Refer to "Data Setting Mode" and initiate 

the computer again.

LCD is black

Did you expose the main unit to the direct 

sunlight for a long time when it was not in use?

Put the main unit in the shade to let it return 

to normal state. 

Unit will return to normal state when the 

temperature rises.

Is the temperature below 0°C (32°F)?

PROBLEM

CHECK ITEMS

REMEDY

Altitude not 

displayed

or wrong 

displayed

PRECAUTIONS

1. Don’t leave the main unit exposed to direct sunlight when not riding the bike.

2.

 

Don’t disassemble the main unit or its accessories.

3. Check relative position and gap of sensor, magnet and main unit periodically.

4. Don’t use thinner, alcohol or benzine to clean the main unit or its accessories when they become dirty.

5. 

Remember to pay attention to the road while riding.

 TROUBLE SHOOTING

DATA RESET 

(

Fig.

4

)

1. Hold down the L button till the LCD digit is blanked, then release it. The computer will reset 

data from stored values to zero.

2. ODO, CLK cannot be reset.

BACKLIGHT

(

Fig.

5

)

1. Hold the button R for 2 seconds to switch on/off the EL black-light function.

2. When the EL back-light function is at working status, each press of the button R or L will turn 

on the back light for 4 seconds.

ABOUT ALTITUDE CALIBRATION(

Fig.6

)

1. Press both L and R buttons for 2 seconds to Altitude Setting 

2. Press the R button to set the value of a digit, and press the L button to move to the next digit.

3. Attention: Calibrate the current altitude only when there're no speed signals.

4. Press both L and R buttons for 2 second, and the current altitude value will return to zero. 

5. Click both L and R buttons exit Altitude Setting.

AUTOMATIC START/STOP

The computer will automatically begin counting data upon riding and stop counting data when 

riding is stopped. The flickering symbol "     " indicates that the computer is at start status.

POWER ON/OFF(

Fig.7

)

   To preserve battery, this computer will automatically switch off and just displays the CLK data 

when it has not been used for about 15 minutes. The power turned on be pressing the any 

button.

BATTERY REPLACEMENT(

Fig.8

)

1. When low battery indicator is shown on the display, please check computer and Di2 which one 

is low battery status, if it is computer, please replace CR2032 battery, if it is Di2 , please take 

off Di2 battery and charge it.   

2. The positive (+) pole of the CR2032 battery must face the battery cap.

3. Press buttons L, R, S for 3 seconds to initiate the main unit.

Attention: When computer is low battery status, we suggest that you replace the battery with a 

new one A.S.A.P Otherwise, the altitude function be turn off , and the new data may be lost, 

when  Di2  is  low  battery  status,  we  suggest  that  you  take  Di2  battery  for  charging  A.S.A.P 

Otherwise, it will affect to switch gear.

         : Speed Pace Arrow

1. The pace arrow shows the comparison between the current speed and average 

speed.

2. If the current speed is above or equal to the average speed, the upward arrow (   ) 

will flash on the display.

3. On the contrary, if the current speed is below the average speed, the downward arrow  

(   ) will flicker.

CADENCE

CURRENT:

RPM Current Cadence 

1. RPM (Revolutions Per Minute) is a measure of rotational speed. It's updated every 

second.

2. The current RPM (cadence) is always shown on the middle display.

3. If you do not turn the crank for over 4 seconds, the current RPM will be reset to 

zero.

MAXIMUM:

Maximum Cadence 

1. With this function, the computer will record your maximum cadence during riding.

2. Whenever you reset the computer or change the battery, the max. RPM record for 

a trip will be cleared.

AVERAGE:

Average Cadence

1. With this function, the computer will display the average cadence during riding. It's 

updated per second.

2. Whenever you reset the computer or change the battery, the average cadence 

record will be cleared.

hEARTRATE

CURRENT:

Current Heart Rate

Display the current heart rate on the middle of display.

aVERAGE:

Average Heart Rate

Calculating the average heart rate during exercise. According to this value we can 

know if the cardiopulmonary condition has been improved while do the same 

intensity of exercise.

mAXIMUM:

Maximum Heart Rate

Monitors and records the maximum heart rate during exercise.

TARGETZONE:

Heart Target Zone

1. The computer displays you set hearttarget 

2. in the mode, Press S button to set hearttarget range 

  

↓ / ↑

 

:

Target zone pace arrow limit

1. This value depends on the target zone setup, and the lower and upper limits are 

displayed as a heart rate value.

2. The heart rate display is simple and clear and is convenient for the beginner.

3. ” 

 “ will display when the heart rate is below the lower limit of the target zone .

4. “ 

 “ will display while the heart rate is above the upper limit of target zone. 

t.im ZONE:

Time in Target Zone

Calculates and records the exercise time within the target zone.

T.OUT ZONE:

Time over Target Zone

Calculates and records the exercise time above the target zone.

POWER

CURRENT:

Current Power   

 The current Power data is shown on the middle display  

Average:

Average Power  

 

With this function, the computer will display the average Power data during riding, it 

is updated per second 

Maximum:

Maximum Power 

With this function, the computer will dispaly the maximum Power data during riding.

↓ / ↑ : 

Power Pace Arrow

1. The pace arrow shows the comparison between the current power and average 

power. 

2. If the current power is above or equal to the average speed, the upward (↑) will 

display on the middle of left side.

3. On the contrary, if the current speed is below the average power, the downward 

arrow (↓) will flicker on the middle of left side. 

aLTITUDE

CURRENT 

:Current Altitude

1. The current altitude is always displayed on the upper display.

2. To get accurate basis altitude, the cyclist should calibrate the altitude before each 

ride.

3. The measurement is based on the principle that atmospheric pressure decreases as 

elevation increases.

4. The altitude is measured by means of the atmospheric pressure, so it's weather- 

dependent.

5. You may obtain the altitude data from a topographic map or the Internet.

6. The altitude of the altimeter is pre-calibrated by the precise instrument at the factory 

before shipment.

GRADIENT 

:Current altitude gradient

With this function, the computer will display the Current altitude gradient riding.

AVG GRAD 

:Trip AVG altitude gradient

1. With this function, the computer will display the average altitude asscent during 

riding.

2. Whenever you reset the computer or change the battery, the average altitude 

asscent record will be cleared.

ALTI UP/ALTI DOWN 

:Trip altitude up / Trip altitude down

1. With this function, it displays the accumulated altitude up and down during a trip.

2. When you ride over uphill paths, the altimeter will accumulate the altitude gains. 

However, when you ride over downhill paths, the computer will accumulate the 

altitude loss.

temp

CURRENT

 : Current Temperature

Temperature would be automatically detected under this mode. You could choose 

either in °C or °F to display the temperature. This function would bring you the joy of 

riding outdoors.

MAXIMUM / MINMUM

 : Maximum temperature / Minimum 

temperature

1. With this function, the computer will display the Maximum temperature / Minimum 

temperature .

2. Whenever you reset the computer or change the battery, the Maximum temperature 

/ Minimum temperature record will be cleared.

BATTERY 

: Low Battery Indicator

1. When low battery indicator is shown on the display, please check computer and Di2 

which one is low battery status, if it is computer, please replace CR2032 battery, if it 

is Di2 , please take off Di2 battery and charge it. 

2. When computer is low battery status, replace the battery with a new one A.S.A.P. 

when the symbol blinks on the display.

Otherwise, the new data of some function will not be stored into the computer, and 

to save battery power, there's no backlight in low battery status. 

3. When Di2 is low battery status, take off Di2 battery and charge it, otherwise it will 

affect to switch gear. 

    :Backlight

1.Press R button to find the Light function, turn on/off the backlight.

2. After turn it on, The symbol "    " will apper to indicate the backlight function is at working 

status.

3. Press any button to light on for 4 seconds each time, and the symbol will flash at the 

same time.

Display 

is slow

No pairiing 

icon display

1. No paired sensor symbol in display 

2. Is the sensor used ANT+?  

1. Go to setting mode for pairing the sensor 

2. Please choose having ANT+ symbol sensor 

Only in Altitude mode 

can be calibration

L

2

L

2

L

2

L

2

L

2

L

2

L

2

L

2

S

L

R

R

R

R

From 

Di2

 information 

go to general mode 

information must 

be before status 

Has Di2 sensor riding mode display 

L

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

L

L

L

L

L

R

R

R

R

R

R

R

R

Cadence Mode 

Group

Heart rate Mode

Group

Power Mode

Group

Altitude Mode

Group

Temperature Mode

Group

Battery Mode

Trip Mode 

Group

R

R

No Di2/ Heart rate/ Powar sensor riding mode display 

After 2 sec 

Auto display

After 2 sec 

Auto display

After 2 sec 

Auto display

After 2 sec 

Auto display

L

L

L

R

R

R

R

R

R

R

R

R

R

R

R

R

Trip Mode 

Group

Cadence 

Mode Group

Altitude 

Mode Group

Temperature 

Mode Group

2

Fig.4

2

all the 

sensor status

After checking

Mount on bracket

Sleep mode

To search all sensor

Press 

any 

button

L button is pair, Keep the senssor ID

R

If it cannot detect Di2 sensor

R button is unpair, mean clear the sensor

Next time 

R

L

+

2

To re-search sensor 

No        sensor ID

L

Keep

Uupair

Keep        sensor ID

General sensor pairing

The above display that all sensors are paired. 

if one sensor has not been paired, 

status of the sensor will not be shown.

(only for                      )

Altitude mode only for                      

Only

Altitude mode only for                      

(1).Data setting mode : 

 S Button : Press for quit data setting mode 

 L Button : Press for change setting digital 

  

Hold 2's for change to next setting 

mode 

 R Button : Press for increase setting value

  

Hold 2's for auto increase setting  

value (5 times per second)

(2).General mode:

 L Button : Press for change function 

            

Hold 2's for data reset

 R Button : Press for change mode group 

            

Hold 2's for on/off EL back-light

 L+R Button : Hold 2's for re-search paired 

sensor (except in Alti group)

 L+R Button : Hold 2's for enter altitude    

adjustment mode (in Alti group)

 S Button : Press for enter data setting mode 

Button function description 

(3). Altitude adjustment mode : 

(only in Altitude group and no speed data) 

L Button : Press for change setting digital 

R Button : Press for increase setting digital

L + R Button : Press for quit altitude 

adjustment mode

L + R Button : Hold 2's for rest to zero

(4). Backlight on status

L Button : Press to turn on backlight for 4's 

 

then pressing again for changing 

group

R Button : Press to turn on backlight for 4's 

 

then pressing again for changing 

mode 

ALL CLEAR : L+RS hold 3's then enter warm-up display 

MAIN UNIT SETTING

Current speed 

Distance

Max speed 

Average speed

Odometer

Ride time

Current HR

Average HR

Max HR

Target Zone 

Target zone Up limit 

Target zone low limit 

0-199.9 Km/h    0-120.0 m/h

0-999.99 Km  0-999.99 mile 

0-199.9 Km/h  0-120.0 m/h

0-199.9 Km/h  0-120.0 m/h

0-999999 Km  0-999999 mile

00H00M:00S- 99H59M:59S 

0- 199 rpm

0- 199 rpm

0- 199 rpm

1:00- 12:59   0:00-23:59

30-240 BPM

30-240 BPM

30-240 BPM

1 set

35-240 BPM

30-235 BPM

Temperature

Min temperature

Max temperature

0-3999 watt

0-3999 watt

0-3999 watt

-10~60

 14~140

-10~60

 14~140

-10~60

 14~140

Time in Target Zone 

Time over Target Zone

Current Cadence

Average Canence

Maximum Cadence

12/24 Hours Clock 

0H:00M:00S-99H:59M:59S

0H:00M:00S-99H:59M:59S

Power Current Cadence

Power Average Canence

Power Max Cadence

24x 1  3/8 

1942

ATB 26x1.4 

 1995

ATB 26x1.5 

 2030

ATB 26x1.75 

  2045

26Inch (650A) 

  2073 mm

Wheel size

Circumference 

27 Inch(700 x32)  2155

700x35C 

2164

Wheel size

Circumference 

Specification 

Current altitude

Current gradient

Average gradient(Uphill only)

Trip altitude up 

Trip altitude down

Di2

-500m-6000 m  -1640ft-19680 ft

± 0-99%

0-99%

0-99999 m   0-99999 ft

0-99999 m   0-99999 ft

2 x10 , 2x11

(1).Data setting mode : 

 S Button : Press for quit data setting mode 

 L Button : Press for change setting digital 

  

Hold 2's for change to next 

setting mode 

 R Button : Press for increase setting value

  

Hold 2's for auto increase setting  

value (5 times per second)

(2).General mode:

 L Button : Press for change function 

             Hold 2's for data reset

 R Button : Press for change mode group 

             Hold 2's for on/off EL back-light

 L+R Button : Hold 2's for re-search paired 

sensor (except in Alti group)

 L+R Button : Hold 2's for enter altitude  

 adjustment mode (in Alti group)

 S Button : Press for enter data setting 

mode 

ALL CLEAR : L+RS hold 3's then enter warm-up display 

(3). Altitude adjustment mode : 

   (only in Altitude group and no speed 

data) 

L Button : Press for change setting 

digital 

R Button : Press for increase 

setting digital

L + R Button : Press for quit altitude 

adjustment mode

L + R Button : Hold 2's for rest to 

zero

(4). Backlight on status

L Button : Press to turn on 

backlight for 4's 

then pressing again for 

changing group

R Button : Press to turn on 

backlight for 4's 

then pressing again for 

changing mode 

Once unpair the sensor 

that stored data will be canceled. 

Quickly reset value 

(except ODO, current value (speed/ Cadence/ HR/ Power/ Altitude/ Temperature/

Battery mode))

Turn off backlight function

(If no any 

sensors 

were paried)

Altitude mode only for                      

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