Empex ALTI-BAROMETER with Case, Compass, Whistle for Hiking and Mountaineering

Empex ALTI-BAROMETER with case for easy portability. Measures atmospheric pressure and altitude.

- Brand: Empex
- Model Name: ALTI-BAROMETER
- Functions: Barometer, Altimeter
- Accessories: Comes with a case
- Scales: Millibar, Meter display

I don't know how to use it, so I'm not sure if it works!
The cover has scratches.

Whistle with compass

Thank you for looking.