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Oregon Series Owner’s Manual 35
Appendix
Size: W × H × D: 2.3 × 4.5 ×
1.4 in. (58 × 114 × 36
mm)
Weight: 5.1 oz. (146 g) without
batteries
191.4 g with batteries
Display: 3 in. diagonal (76 mm)
backlit 65K color TFT
display (240 × 400 pixels)
Case: Rugged plastic,
waterproof to IPX7
Temperature Range: From -4
°
F
to 158
°
F (from -20
°
C to
70
°
C)*
*The temperature rating of the Oregon
may exceed the usable range of some
batteries. Some batteries can rupture at
high temperatures.
Source: Two AA batteries
(alkaline, NiMH,
lithium, or precharged
NiMH) alkaline not
recommended for
Oregon 550 and 550t
Battery Life: Up to 16 hours
GPS: < 33 ft. (10 m) 95% typical*
*Subject to accuracy degradation to 100
m 2DRMS under the U.S. DoD imposed
Selective Availability (SA) Program
when activated.
DGPS: from 10 to 16 ft. (from
3 to 5 m) 95% typical
(WAAS accuracy in
North America)
Velocity: 0.328 ft./sec. (0.1 m/
sec) steady state