Compact altimeter compatible with backpacking, reliable outdoor temperature gadget

Electronic Altimeter With Carabiner And Altimeter,betterlife Pocket Thermometer compatible with Outdoor Fishing Weather compatible withecast Outdoor Gadget1pcs f26 The method to reset the altitude value is to press and hold the [ALTI/+] button until 0M is displayed at the bottom of the screen, then start moving, and the altitude value movement will be displayed on the screen. Press the [ALTI/+] button again to return to the actual height value. Relative altimeter: using the relative altimeter is used to clear the height value measured at that moment , and use the position at that time as the 0m height point, and the height value up or down from the 0 height point is the relative height value. Barometer: The current barometric pressure will be displayed on the screen immediately after power-up. Press the [ALTI/+] button to switch between barometer and altimeter. Altimeter: The altitude value displayed on the screen after power-on is the sea level altitude of the current location. In the altitude display state, press [SET] and [ALTITUDE/+] keys simultaneously, you can press [+] or [-] to change the current altitude value. Weather compatible withecast: It can predict the weather conditions in the next 12-24 hours when powered on, and the effective range is 30-50 km. Heritan 1. Long press the [SET] button compatible with 2 seconds, 24 hours flashes, press