Stay one step ahead of Mother Nature with the Solar Powered PRG300, incorporating Casio's new Triple Sensor Version 3 engine. Advanced CASIO original technology has allowed for a 95% smaller direction sensor and 90% reduction in sensor power consumption compared to previous models. Despite their smaller size, the new sensors in this model delivers better accuracy and energy efficiency. This model can measure Altitude in 1m increments (previously 5m) and display compass readings with 60-seconds of continuous measurement (previously 20 seconds). In addition to the altimeter and digital compass, the watch's Barometer, incorporates a unique Barometric Pressure Tendency Alarm that alerts the wearer to sudden changes in pressure readings. Design features include a compact, sleek case and soft urethane band for a better fit to the wrist. One-touch access to digital compass, barometric pressure/altitude, and temperature readings keep important information at your fingertips. Everything about these models is designed and engineered to make them essential pieces of outdoor gear.

Module: 3443

Power: Tough Solar 

Water Resistant: 100M 

Low Temperature Resistant: (-10 C / 14 F)

Altimeter

Measuring Range: -700 to 10,000 m (-2,300 to 32,800 ft)

Measuring Unit: 1 m (5ft)

Manual Memory Measurements: (up to 30 records, each including altitude, date, time)

Auto Log Data: (High/low altitudes, auto cumulative ascent and descent)

Trek Log Data: (up to 14 records of high/low altitudes, auto cumulative ascent and descent of particular treks)

Relative Altitude Readings: (3,000 to 3,000 m), Selectable measurement

Interval: 5 seconds or 2 seconds

Digital Compass

Measures and Displays Direction: as one of 16 points

Measuring Range: 0 to 359 degrees

Measuring Unit: 1 degree, 60 seconds continuous measurement, Graphic direction
pointer, Bidirectional calibration and Northerly calibration function Magnetic declination correction, Bearing memory

Barometer

Display Range: 260 to 1,100 hPa (7.65 to 32.45 inHg)

Display Unit: 1 hPa (0.05 inHg) 

Display Range: -10 to 60 C (14 to 140 F)

Display Unit: 0.1 C (0.2 F)

Light: Full Auto LED (Super Illuminator) Backlight with Afterglow

World Time: 31 time zones (48 cities + UTC), city name display, daylight saving on/off

Sunrise/Sunset Data: Sunrise time and sunset time for specific date/ daylight pointers

Alarms: 5 Daily (4 one-time and 1 snooze alarm), Hourly Time Signal

Stopwatch: 1/10 Second 

Measuring Capacity: 999:59'59.9"

Measuring Modes: Elapsed time, split time, 1st-2nd place times

Countdown Timer

Measuring Unit: 1 second

Countdown Range: 24 hours

Countdown Start Time Setting Range: 1 minute to 24 hours (1-minute increments and 1-hour increments)

Calendar: Full Auto Calendar (Pre-programmed until the year 2099)

Hour Formats: 12/24 

Button Operation Tone: on/off

Accuracy:+/-15 seconds per month (with no signal calibration)

Storage Battery: Solar Rechargeable Battery

Approx. Battery Life: 8 months on full charge (without further exposure to light)

Size of Case: 56.0 x 47.0 x 12.6mm

Total weight: 57g

Function: Battery Level Indicator, Power Saving Function