SUNROAD multifunction gps altimeter gps tracker setting method

SUNROAD multifunction gps altimeter gps tracker features:
1. GPS, Beidou doulble navigation system, double stalite locate, speed, distance, 9 groups route tracking
2. Altitude gain and loss, 24 hours altitude data record and rend chart
3. Altitude remind, setting 1-200meters
4. Target altitude setting
5. History max/ min alatitude, temperature and humidity
6. 24hours air pressure trend chart
7. 16 directions digital compass
8. Temperature, hygrometer, time, date, alarm clock, LED torch
9. USB charge
10. IPX4 waterproof

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