Solar Power:Low light amorphous silicon solar cells7uA at 200 LusAltimeter: Range of -2.296 feet to 29500 ft Accuracy of 1 m or 3 ft Barometer: Range of 300 mbar to 1100 mbar Accuracy of 1 mbar Sea level pressure setting manualElectronic compass: 4-bearing mode display External Magnetic field calibrationHigh Accuracy of + 3degreesResolution of + 1degreesThermometer: Range of -10°C(14°F) to +60°C(140°F) (°C and °F selectable) Accuracy of 1°CWeather forecast: Weather forecast for next 12 to 24 hours 4 weather status indicating: sunny, slight sunny, cloudy, rainy Time: Time with hour,minute,second24 hours format clock display Backlight:5 seconds super bright LED backlight