SUNROAD Multifunction LCD Digital Altimeter with Compass & Barometer & Thermometer & Hygrometer & Weather Forecast & LED Torch and Clock About the product 1. Brand new and high quality. 2. Adopt super-accuracy sensor from Swiss. 3. Altitude total gainloss, 24 hours altitude record and chart. 4. Max min altitude, temperature, humidity record. 5. 24 hours air pressure trend chart. 6. Incorporates altimeter, barometer, compass, Thermometer, hygrometer, time, date, alarm clock, LED torch functions, etc. 7. Built-in rechargeable battery. 8. LCD backlit. 9. IPX4 waterproof. Specifications 1. Altimeter: - Altimeter range: -700 to 9000m -2296 to 29500ft) - Resolution of 1 meterfeet - Max.Min. memory for altitude - Altitude history and graphical display of the last 24 hour altitude readings - Altitude total gain or loss 44999 meterfeet 2. Barometer: - Pressure range 300hpa to 1100hpa (8.84inHg to 32.44inHg) - Resolution of 0.1hpa (0.01inHg) - 24 hour pressure history and graphical display - Electronic pressure weather forecast (sunny, slightly cloudy, cloudy, rainy) - Pressure trend indicators 3. Thermometer: - Range from -20 degree Celsius to 60 degree Celsius - Unit: degree Celsius Fahrenheit degree unit switch available - Max Min memory for temperature 4. Hygrometer: - Relative humidity (20% - 95%) - Max Min memory for relative humidity Note Please do not submerge in water. Package List 1 x Altimeter 1 x Charging Cable 1 x Lanyard 1 x Cleaning cloth 1 x User Manual