Specifications:

1. 8-in-1 digital compass, altimeter, barometer, calendar, weather forecast, time, thermometer, and level indicator

2. Digital compass show directions/bearing in degree and cardinal point, with back light.

3. Altimeter range: -700 to 9,000m or -2,300 to 29,500ft

4. Thermometer both in °C and °F

5. Clock: 12/24 hours

6. Calendar: with year month and date

7. With backlight function

8. Battery: 2 AAA batteries

9. Size: 120 x 76 x 28mm

10. Weight: 182g