Measurement results are displayed the north, south, east and west in a large circle display of the face upper-left corner. In addition, since it is equipped with a bearing memory function that can go straight in that direction to store the direction of the destination, even if visibility is hampered by such as sandstorms and support activities. Also, equipped with temperature sensors, it achieved the temperature measurements up to -10 ℃ ~ 60 ℃. The day hidden in temperature will correspond to the intense desert of specific climate.
For greater airtightness, newly developed a structure enclosing the button portion of the side 3 key layout with a urethane cover 1 piece. A fine of dust, sand invasion from around the button to shut out. By adopting this structure, even realizing large buttons with sequence three each side. Operability of the height was also taken into consideration.
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