Portable Digital Altimeter Barometer Compass Locator Handheld GPS Navigation Rec
Carrying mode Handheld Type. dial display Digital. Pressure range 300hpa to 1100hpa(8.84inHg to 32.44inHg). Range from -20℃ to 60℃ (-4℉ to 140℉). We're happy to help. Altitude history and graphical display of the last 24 hour altitude readings.