Description: This height barometer is designed with 4 meter in one, it is practical and fit your different needs. You can use it to measure altitude, air pressure, temperature, and it has a small compass. It is designed with a transparent dial and scale, it can be easily read, the case is strong and durable, not easy to damage. You can carry it with you when you go out hiking, camping, mountaineering, and more. No need to use any battery, it is reliable, compact and lightweight, makes it easy to carry. Specification: Material: Plastic + Metal.Color: Show as picture. Size: 85*68*28mm. Note:There may be a bit of color distortion due to the different resolutions of your computer. There may be slight errors due to other manual measurement. Package Included:1 * Altimeter.