Compasses SOLAR POWERED MULTI FUNCTION DIGITAL COMPASS Solar Power: Low Light Amorphous Silicon Solar Cells7uA at 200 LuxAltimeter: 2,296 feet - 29,500 feet rangeResolution of 1 meter/3 feetBarometer: 300mbar - 1,100mbar rangeResolution of 1mbarSea level pressure manual settingWeather Forecast: The weather forecast for next 12-24 hours4 weather status-Sunny/Cloudy/Overcast/RainElectronic Compass: 4-bearing mode displayExternal magnetic field calibrationHigh accuracy of + or - 3 degreesResolution of + or - 1 degreeThermometer: -10 to +60 degree C (C of F selectable) Resolution of 1 degreeTime: Time with hour, minute, second24 hour format clock displayBacklight: 5 seconds super bright LED backlightWater Level: IPX-1Size: 3" x 2.25" x 6" http://www.patriotsurplus.com/r80008.html $56.95