Item Type: Digital Altimeter BarometerMaterial: ABSBattery: 1 x CR2032 button cell (shipped without battery) .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; } 1[MULTIFUNCTIONAL TOOL] The digital altimeter is based on azimuth and barometric sensing electronics and displays bearing, direction, clock, temperature, weather forecast, and altitude. 2[BACKLIGHT DISPLAY] The digital altimeter has an ultra bright backlight that allows you to clearly see the readings on the LCD display no matter what environment you are in. 3[ABS HOUSING] The ABS housing of the digital altimeter has good wear resistance to ensure the internal components. 4[PORTABLE SIZE] The special hook design of this digital altimeter makes this device easier to carry in various outdoor sports. 5[SIMPLE OPERATION] This digital handheld altimeter is key operated, with responsive keys, very convenient for outdoor use.