Specs: GPS kit, 2.2 in x 0.8 in x 1.9 in, 2.4 oz, 12 channel, Built-in
Specs: GPS kit, 2.8 in x 1.7 in x 0.9 in, 2.1 oz, 20 channel
Specs: GPS kit, 2.2 in x 0.6 in x 1.9 in, 1.4 oz, CompactFlash, 12 channel, Built-in
Specs: GPS receiver module, 2.4 in x 2.4 in x 0.7 in, 5.7 oz, 12 channel, Built-in
Specs: GPS kit, 3.8 in x 5.6 in x 1 in, External
Specs: GPS receiver module, 1.2 oz, SD Card, 12 channel, Built-in
Specs: GPS/GLONASS receiver module, 3.8 in 1.9 in, 7.1 oz, 32 channel
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