ABS multifunctional counters, which are durable and long-term to use The height measurement range of the electronic altimeter is from 700 to 9000m / -2300 to 29500ft ( the altimeter can be used for initial calibration), the resolution is 1 meter or 3 feet The digital altimeter can predict weather conditions after 12-24 hours. The weather indicates: 1 battery 2 AAA, 2 Sunny-Cloudy-rainring (not included) The size of the electronic altimeter is 90x50x20mm, which is convenient to carry with you when you go out without stress < p>This is a multifunctional meter that helps you measure altitude, temperature, air pressure and compass Description Preventive measures: Avoid use in rain, humidity, high or low temperature, (working temperature: 0 -50; storage temperature: -20 -70. Avoid contact with perfume, alcohol, detergent and other corrosive substances. Avoid close to buildings such as concrete/steel or place it on the surface of metal plates. Features Digital altimeter - Color: as shown.< /p> -Material: ABS. -Dimension: 9x5x2 cm / 3.54x1.97x0.79 inch. Measurement range from 300 mbar to 1100 mbar (0.1 mbar resolution) Measurement range -10C to + 60C (units C and F are optional). Resolution: 0.1 degrees Package included 1 * digital altimeter (without battery)