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LED LIGHT
To turn on LED light:
• Press and hold .
(light will remain on for the duration it is pressed)
BACKLIGHT / KEYPAD LOCK
To activate backlight:
• Press to turn on backlight for 3 seconds.
NOTE
The backlight function will not operate if is
displayed.
To toggle keypad lock On or Off:
• Press and hold .
indicates keypad is locked.
WATER RESISTANCE
The GP123 is splash proof only.
SPECIFICATIONS
Real time clock 12/24 hour with hour, minute
Temperature
range
-5°C to 50°C
(28°F to 116°F)
Altitude range
-400 to 9,000 m
(-1312 to 29,520 ft)
Barometric
pressure range
300 to 1,100 hPa
(8.86 to 32.48 inHg)
Sea level pressure
range
900 to 1,100 hPa
(26.58 to 32.48 inHg)
Weather forecast Sunny, partially sunny, cloudy, rainy
Digital compass 16 cardinal / ordinal points
Power 2 x UM-4 (AAA) 1.5V batteries
Operating
temperature
-5°C to 50°C
(28°F to 116°F)
Storage
temperature
-10°C to 70°C
(1°F to 135°F)
PRECAUTIONS
To ensure you use your product correctly and safely, read
these warnings and the entire user manual before using the
product:
• Use a soft, slightly moistened cloth. Do not use abrasive
or corrosive cleaning agents, as these may cause
damage. Use luke warm water and mild soap to clean
the unit thoroughly after each training session. Never
use the products in hot water or store them when wet.
• Do not subject the product to excessive force, shock,
dust, temperature changes, or humidity. Never expose
the product to direct sunlight for extended periods. Such
treatment may result in malfunction.
• Do not tamper with the internal components. Doing
so will terminate the product warranty and may cause
damage. The main unit contains no user-serviceable
parts.