description Casio Pro Trek PRW-50 Overview
help Casio Pro Trek PRW-50 FAQ
What does the Triple Sensor in PRW-50 measure?
Triple Sensor Ver. 3 measures direction, barometric pressure, temperature, and altitude. The altimeter can cover roughly -700 to 10,000 metres, which is useful for hiking but not a replacement for surveyed navigation. [Casio](https://www.casio.com/sg/watches/protrek/product.PRW-50Y-1B/)
Does PRW-50 charge itself and set the time?
It uses Tough Solar and Multi Band 6 radio reception, which can adjust the time from one of six transmitter stations when signal conditions and regional coverage allow. It is a field watch with analog hands plus a digital display, not a phone-dependent smartwatch. [Casio](https://www.casio.com/sg/watches/protrek/product.PRW-50Y-1B/)
How water resistant is PRW-50?
Casio rates the PRW-50 at 100 metres and lists low-temperature resistance to -10 C. That is suitable for rain, swimming, and outdoor use, but it is not the 200-metre dive rating found on some G-SHOCK and Citizen diver models. [Casio](https://www.casio.com/sg/watches/protrek/product.PRW-50Y-1B/)
Can PRW-50 record elevation changes on a hike?
Yes. It stores up to 30 manual altitude measurements and can log high and low elevations plus cumulative ascent and descent. The watch also offers an altitude-difference hand, so it can show change without relying on a phone. [Casio](https://www.casio.com/sg/watches/protrek/product.PRW-50Y-1B/)
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