FOOTIC 1. Long press the [SET] button for 2 seconds, 24Hr flashes, press the [ALTI/+] button to switch between 24Hr or 12Hr 2. Press the [SET] button to enter the setting, at this the hour digits flash, press [ALTI/+] or [-] to set the hour value 3. Press the [SET] button to flash the minutes, press [ALTI/+] or [-] to set the minutes 4. Press the [SET] button to flash the calendar year number, press the [ALTI/+] or [-] button to set the year value 5. Press [SET] button to flash the calendar month number, press [ALTI/+] or [-] button to set the month value 6. Press the [SET] button to flash the calendar date number, press the [ALTI/+] or [-] button to set the date value 7. Press the [SET] button to flash the temperature unit Celsius, press the [ALTI/+] button to switch between Celsius or Fahrenheit 8. Press the [SET] button and the pressure unit flashes, press the [ALTI/+] button to switch to the pressure unit /inHg/mmHg 9. Press the [SET] button to flash the height unit M, press the [ALTI/+] button to switch between the height unit M or FEET 10. After the setting is completed, press [HISTORY] to exit the setting state, or automatically exit the setting without doing any operation within 10 seconds colour:Black Material:ABS size:9 x 5 x 2cm Contents: 1 x altimeter barometer 1 x English 1 x CR2032 button (not included) Only the above content, other are not included. Note: Light and different displays may the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.Weather forecast: It can predict the weather conditions in the 12 to 24 hours when it is turned on, and the effective range is 30-50KM. Altimeter: The altitude value displayed on the after on is the sea level altitude of the current location. In the altitude display state, press the [SET] and [ALTITUDE/+] simultaneously, you can press [+] or [-] to change the current altitude value. Barometer: The current barometric pressure will be displayed on the immediately after on. Press the [ALTI/+] button to switch between barometer and altimeter. Relative altimeter: The of the relative altimeter is to clear the height value measured at this , and the position at this as the 0M height , and the height value rising or falling from the 0 height is the relative height value. The for resetting the altitude value is to press and hold the [ALTI/+] button until 0M is displayed at the bottom of the , and then to move, and the relative altitude value of the move will be displayed on the . Press and hold the [ALTI/+] button again to switch back To the actual height value.Date First Available: August 23, 2022. Best Sellers Rank: #2,125,428 in Sports & Outdoors. Customer Reviews: 5.0 out of 5 stars 1 rating 5.0 out of 5 stars. : B0BBNL74X2. Part Number: ?500024717. Manufacturer: ?FOOTIC. Color: ?Black grey. Brand Name: ?FOOTIC. Item Weight: ?55 Grams. Item Dimensions LxWxH: ?5.51 x 2.36 x 1.18 inches. Package Weight: ?55 Grams. Item Package Dimensions L x W x H: ?5.51 x 2.36 x 1.18 inches.