Carabiner Electronic Altimeter with Handheld Thermometer and Barometer for Outdoor Use

Barometer: Once powered on, the current barometric pressure appears on the display right away. Use the [ALTI/+] button to toggle between barometer and altimeter modes. Altimeter: The altitude shown on the screen after startup corresponds to the sea level altitude of your current position. While in altitude display mode, press [SET] and [ALTITUDE/+] together, then use [+] or [-] to adjust the current altitude reading. Relative altimeter: This function clears the measured height at the present moment, treating that spot as the 0M reference. Any rise or fall from that zero point is then shown as the relative height. To reset the altitude value, hold down the [ALTI/+] button until 0M appears at the bottom of the display, then begin moving; the relative altitude of your movement will be shown on screen. Press and hold [ALTI/+] once more to return to the actual altitude reading. Weather forecast: When activated, it can predict weather conditions for the next 12 to 24 hours, with an effective coverage of 30-50KM. 1. Hold the [SET] button for 2 seconds, and 24Hr will blink; press [ALTI/+] to choose between 24Hr and 12Hr formats. 2. Press [SET] to enter time setting; the hour digits will blink, and you can set the hour using [ALTI/+] or [-]. 3. Press [SET] to make the minutes blink, then adjust them with [ALTI/+] or [-]. 4. Press [SET] to make the calendar year blink, then set the year with [ALTI/+] or [-]. 5. Press [SET] to make the month blink, then set the month with [ALTI/+] or [-]. 6. Press [SET] to make the date blink, then set the date with [ALTI/+] or [-]. 7. Press [SET] to make the temperature unit (Celsius) blink; press [ALTI/+] to switch between Celsius and Fahrenheit. 8. Press [SET] to make the pressure unit HPA blink; press [ALTI/+] to cycle through HPA, inHg, and mmHg. 9. Press [SET] to make the height unit M blink; press [ALTI/+] to toggle between M and FEET. 10. After finishing settings, press [HISTORY] to exit, or the device will automatically leave setup mode if no action is taken within 10 seconds. Colour: Black grey Material: ABS Size: 9 x 5 x 2cm Package Contents: 1 x altimeter barometer 1 x English manual 1 x CR2032 button battery (not included) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.