CCL ELECTRONICS LTD 3110A1703 Manuel D’Utilisation

1.  Remove the battery door of the sensor.

2.  Insert 2 x AA size batteries into the battery compartment. Make 

sure you insert them the right way according to the polarity 

information marked on the battery compartment.

3.  Close the battery door.

 - Once the channel is assigned to one sensor, you can only 

change it by removing the batteries or resetting the unit.

 - Avoid placing the sensor in direct sunlight, rain or snow.

1.  Remove the battery door of the main unit.

2.  Install 4 new AA size batteries according to the polarity 

information marked on the battery compartment and then press  

[ RESET ] key by using a metal wire to reset the unit. 

3.  Close the battery door.

4.  Once the batteries are installed, all the segments of the LCD will 

be shown.

To avoid the wireless sensor and main unit pairing failure, please 

power up the sensor/s first, and then press 

[ RESET ] key on the 

main unit (no need on sensors).

INDOOR TEMPERATURE AND HUMIDITY FUNCTION
1.  Press

 [ °C / °F ] key to switch between °C / °F. Decimal point is 

effective for both settings.

2.  When the temperature is below -40°F or above 158°F, “

Lo” or 

“

Hi” will be displayed respectively. The humidity display will show 

“

--”.

  

3.  When the humidity is below 1% or above 99%, “

Lo” or “Hi” will be 

indicated respectively.

 

COMFORT INDICATION
The comfort indication is a pictorial indication based on indoor air 

temperature and humidity in an attempt to determine comfort level.

Too cold

Comfortable

Too hot

 - Comfort indication can vary under the same temperature, 

depending on the humidity.

 - There is no comfort indication when temperature is below 0°C 

(32°F) or over 60°C (140°F).

TEMPERATURE & HUMIDITY TREND
The temperature & humidity trend indicator shows the trends of 

changes in the forthcoming few minutes. Arrows indicate a rising, 

steady or falling trend.

Arrow indicator
Trend

Rising

Steady

Falling

TEMPERATURE AND HUMIDITY CALIBRATION
1.  In normal mode, press and hold 

[ TUNE ] key for 2 seconds to 

enter temperature and humidity calibration mode in which the 

current outdoor channel or “

IN” icon will flash. Press [ CHANNEL 

/ + ] or [ MEM / - ] key to choose for INDOOR or different 

CHANNEL.

  

2.  Press 

[ MODE ] key again to switch between temperature and 

humidity. Press 

[ CHANNEL / + ] or [ MEM / - ] key to adjust the 

value.

3.  When finished, press 

[ TUNE ] key for 2 seconds or leave the unit 

for 60 seconds to return to normal mode.

4.  Pressing 

[ MODE ] key for 2 seconds during temperature and 

humidity calibration mode will reset the value to the actual or 

uncalibrated measurement.

5.  Reset the temperature and humidity values for each channel 

individually. There is no batch reset.

6.  Calibration mode sequence: channel → temperature → humidity

7.  In temperature calibration mode, press 

[ CHANNEL / + ] key or  

[ MEM / - ] key to modify 0.1 °C or °F of the value. Long press to 

quick-adjust the value.

8.  In humidity calibration mode, press 

[ CHANNEL / + ] or  

[ MEM / - ] key to modify 1% of the value. Long press to quick-

adjust the value.

9.  If the current reading of the selected channel displays the flashing 

“

--”, “Hi” or “Lo”, it will be impossible to adjust. Pressing  

[ CHANNEL / + ] or [ MEM / - ] key will not change the value.

10. If re-enter temperature and humidity calibration mode, the 

adjusted value will reset to the original value.

11. The comfort indication is based on calibrated temperature and 

humidity values to calculate.

MAX/MIN TEMPERATURE AND HUMIDITY RECORD
The unit preserves the MAX/MIN temperature and humidity records 

since the last manual reset. 
1.  In normal mode, press 

[ MEM / - ] key once to show the current 

maximum temperature and humidity values; press again to show 

the minimum values; press the third time to return to normal 

mode.

2.  When the MAX/MIN records are shown, the display will return to 

normal mode after leaving the unit for 5 seconds.