Tech4o Alti-Ski Manuale Utente

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9.1 Altimeter Mode - Setting
• In altimeter mode, press and hold the [s/+] button for 2 seconds.  
• The current altitude reading will flash.  
• Using the [s/+] and [o/-] buttons, enter your reference altitude.  

Your reference altitude should be obtained from a reliable map 
source for your current altitude.

• Once you have researched and entered your reference altitude, 

press the [o/o] button to confirm selection.

• The ft/m indicator will now flash.
• Press the [o/-] button to select your desired unit of measurement. 

Press the [o/o] button to confirm selection. 

• Altimeter mode also has an optional lock feature.
• Press the [o/o] button to lock altimeter mode and prevent any 

accidental recordings of changes in altitude.

9.2 Altimeter Mode - Maximum Altitude
• In altimeter mode, press the [o/-] button to view the maximum 

altitude.

• The maximum altitude is the highest altitude recorded since the 

feature was last reset.

• To reset the maximum altitude, press and hold the [s/+] button for 

2 seconds.

9.3 Altimeter Mode - Barometric Pressure
• In altimeter mode, press the [0/-] button to view the current 

barometric pressure.

• To change the unit of measure, press and hold the [s/+] button for 

2 seconds.

• The inHG / mbar indicator will flash.
• Use the [o/-] button to select your desired unit of measurement. 

Press the [o/o] button to confirm your selection.

10.0 Descent Mode - Display
In descent mode, the watch will display 

altitude descent measurements on the 
top row and the current home time, 
current temperature, or the run counter 
on the second row depending on your 
personal preference.

• To view descent mode, press the [m] 

button until the mode indicator displays 
the down arrow.