The ideal oecumenical for outdoor enthusiasts seek for extreme performance technology and use of green energy - Solar powered products to solve the power problem as well as the environmental pollution caused by discarded batteries - Designed to deliver extensive accurate and vital information with an altimeter barometer themometer compass weather forecast and time - Lanyard included for easy carrying - Powered by 1 * CR2032 battery (included) - Chinese and English user manual included - Altimeter: 2296 feet to 29500 ft range Resolution of 1 mbar Sea level pressure setting manual - Barometer: 300 to 1100 mbar Resolution: 1 mbar Manual setting of sea level pressure - Weather Forecaster: 12 to 24 hour reading - 4 status indicators: sun partial sun cloud and rain - Electronic Compass: 4 bearing mode display External magnetic field calibration - Thermometer: -10 to 60'C [14 to 140'F] Reads in Celsius or Fahrenheit - Clock: Displays hours minutes and seconds 24 hour format - Backlight: 5 seconds super bright led backlight - Water level: IPX-1