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Truly a small wonder, the eTrex takes the best features of a 12 parallel channel GPS receiver and put them into a six ounce package that is only four inches high and two inches wide. The result is a unit that will literally fit in the palm of your hand.
Besides its small size, mariners and outdoorsmen will likely notice the sleek design of the eTrex. All buttons are located on either side of the unit, allowing for simple, one-handed operation that won't obstruct your view of the display. In fact, the eTrex features only five operator buttons for the ultimate in user-friendly design. Thanks to its bright yellow case, the eTrex will be hard to misplace and easy to find in any boat or backpack. The eTrex is completely waterproof so it can take an accidental splash or dunk in the water and still continue to perform.
Inside the eTrex, you will find the proven performance of a 12 parallel channel GPS receiver that will run for 22 hours on just two AA batteries. The eTrex will store up to 500 user waypoints with graphic icons and boasts Garmin's exclusive TracBack® feature that will reverse your track log and help you navigate your way back home. In addition, the eTrex uses animated graphics that will help you identify your marked waypoints quickly and easily.
Specifications
Navigation Features
Waypoints/Icons: 500 with name and graphic symbol
Tracks: Automatic track log; 10 saved tracks let you retrace your path in both directions
Route: 1 reversible route with up to 50 waypoints
Trip computer: Current speed, average speed, time of sunrise/sunset, resetable maximum speed, trip timer, and trip distance
Map datums: More than 100
Position format: Lat/Lon, UTM/UPS, Maidenhead, MGRS and other grids
Performance
Receiver: Differential-ready, 12 parallel channel GPS receiver continuously tracks and uses up to 12 satellites to compute and update your position
Acquisition Times:
* Warm: approx. 15 seconds
* Cold: approx. 45 seconds
* AutoLocate®: approx. 5 minutes
Update Rate: 1 second, continuous
Accuracy:
* Position: 15 meters (49 feet) RMS*
* Velocity: 0.1 knot RMS steady state
Dynamics: 6g's
Interfaces: RS232 with NMEA 0183, RTCM 104 DGPS data format and proprietary Garmin®
Antenna: Built-in patch
Physical
Size: 4.4"H x 2.0"W x 1.2"D (11.2 x 5.1 x 3.0 cm)
Weight: 5.3 ounces (150 g) with batteries
Display: 2.1"H x 1.1"W (5.4 x 2.7 cm) high-contrast LCD with bright backlighting
Case: Waterproof to IEC 529 IPX7 standards
Temperature range: 5°F to 158°F (-15°C to 70°C)
Data storage: Indefinite; no memory battery required
Power
Source: 2 AA batteries (not included)
Battery Life: Up to 22 hours
Need more? Further information on this GPS may be directly obtained from 
garmin.com.