Pyle Sports PAH1 Digital Multifunction Handheld Altimeter With Barometer, Thermometer, Hygrometer Altitude Range 500~9000m / -1600 ~ 29500 Ft Resolution 1 M / Ft Max / Min Memory For Altitude Altitude History And Graphical Display For Last 12 Hours Altitude Reading Altitude Alarm Stop Watch 95959 Altitude Total Gain / Loss Barometer Pressure Range 300 ~ 1100 Pha/Mbar / 18.84 ~ 32.44 Inhg Resolution Of 0.1 Pha/Mbar / 0.01 Inhg Max / Min For Pressure Pressure History And Graphical Display For Last 12 Hours Altitude Reading Electronic Pressure Weather Forecast (Sunny, Slightly Cloudy, Cloudy, Rainy, Storm) Pressure Trend Indicator Thermometer Thermometer 20 ~ 60 C C / F Selection Max / Min Memory For Thermometer Time Keeping Display : Hour / Minute / Second Auto Calendar : Year / Week Of Day / Month / Date 1 Daily Alarm Sold as : Unit Palm-sized digital barometer, altimeter, thermometer, and clock Measures current, minimum, and maximum pressure with trend indicators Displays altitude up to 29,500 feet; recalls last 12 hours of altitude data Temperature range of -4 to 140 degrees F; ultra-reliable clock Hour, minute, and second display; daily alarm; 1-year warranty