CASIO PROTREK PRG-250B-3DR

Full auto EL light, selectable illumination duration, afterglow

Measures and displays direction as one of 16 points

Measuring range: 0° to 359°

Measuring unit: 1°

20 seconds continuous measurement

Graphic direction pointer

Bidirectional calibration and northerly calibration function

Magnetic declination correction

Bearing memory

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

Measuring unit: 5 m (20 ft.)

Manual memory measurements

(up to 14 records, each including altitude, date, time)

High Altitude / Low Altitude memory

Total Ascent / Descent memory

Others: Reference altitude setting, altitude differential

*Changeover between meters (m) and feet (ft)

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

Display unit: 1 hPa (0.05 inHg)

Atmospheric pressure tendency graph

Atmospheric pressure differential graphic

*Changeover between hPa and inHg

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

Display unit: 0.1°C (0.2°F)

*Changeover between Celsius (°C) and Fahrenheit (°F)

31 time zones (48 cities + coordinated universal time), city code display, daylight saving on/off

Measuring capacity: 23:59'59.99''

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

Measuring unit:1 second

Countdown start time setting range: 1 to 60 minutes (1-minute increments)

Reset time: 5 minutes

Others: Time up alarm, progress beeper

5 independent daily alarms

6 months on rechargeable battery (operation period with normal use without exposure to light after charge)

23 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)