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MI-2531  

 

Indoor main unit of Full Weather Station 

Rev (0) Dated 16/8/05   

 

Microtech Components Ltd. 

Room 21, 10/Fl., Leader Industrial Building, 57-79 Au Pui Wan St., Fatan, Hong Kong 

 

Tel : (852) 23641713    Fax : (852) 23641862    Email : 

info@microtechcomp.com.hk

 

 

3/5

 

3-2-2 

In normal mode, press MAX (or MIN) button will show the maximum (or minimum) value of the past 

24 hours on LCD. 

 

While in the MAX (or MIN) mode, press RECORD button to view the time when the maximum (or 

minimum) value occurred in cycle: (the value and the time will be blinking) 

 Outdoor 

temperature 

Æ

 outdoor humidity 

Æ

 indoor temperature 

Æ

 indoor humidity 

Æ

 wind speed 

 

 

Air pressure                                                  WIND CHILL (the current content on the LCD, see 3-2-1)       

 - 

You can press CHANNEL button to change the different outdoor maximum (or minimum) value of 

temperature and humidity (if other outdoor temperature & humidity sensor is added). 

 

In the record mode, press CLEAR button to clear the record individually.   

Press MAX (or MIN) again can quit the MAX (or MIN) mode. 

 

No button was pressed for 15 seconds, the unit will change into normal mode. 

3-2-3  

In normal mode, press SETUP button once to review the air pressure history. 

  While in air pressure history mode, press (+) or (-) to review the past 19 hours record of air 

pressure in cycle. 

    Press CLEAR button to exit out of the pressure history mode.   

3-2-4  

In normal mode, press CHANNEL button once to view the other outdoor temperature and 

humidity in cycle (maximum 3 outdoor temperature and humidity sensor can be added). 

 

3-3.  SETUP OPERATION 

3-3-1 Setup step 

 

In normal mode, press & hold the SETUP button for 3 seconds to go into setup mode 

 

Press (+) or (-) to change the value, press & hold (+) or (-) 3 seconds for rapid change 

 

Press SETUP button to confirm and go to set next value   

 

the setting value is blinking 

-

 Press CLEAR button to store the current setting and exit out of the setup mode. 

NO key was pressed for 15 seconds will store the current setting and exit out of the setup mode 

automatically. 

3-3-2 Setup cycle 

 

hour 

Æ

 minute 

Æ

 month 

Æ

 date 

Æ

 year 

Æ

 12/24 hour 

Æ

 time zone 

Æ

 DST ON/OFF   

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