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Gekos are the smallest and lightest waterproof GPS units on the market—inexpensive, with sleek designs and simple operating systems.
With its sturdy, dark-gray case, the Geko 301 packs an amazing amount of functions into its slim frame. It has all the features of the Geko 201, plus an electronic compass and a barometric altimeter. The compass provides bearing information while you're standing still, and the altimeter determines your precise altitude and provides a 12-hour pressure-trend tool for gauging changing weather conditions.
The Geko 301 also includes five interactive games that transform the great outdoors into a virtual board game, including the new Gekoids, which takes advantage of the electronic compass. You can also enjoy a good workout while chasing a virtual lizard in Geko Smak, match symbols in a grid version of Memory Race, navigate to reference points without crossing one's trail in Nibbons, and collect symbols along a path in Virtua Maze.
Geko 301 features
* Built-in electronic compass
* Barometric altimeter for elevation and weather pressure measurement
* Accuracy of three meters or less with WAAS
* Five simple buttons for easy, one-hand operation
* Weighs only 3.4 oz (with batteries)
* Compact 1.9" (W) x 3.9" (H) x .96" (D) size
* 64 x 100 pixels high-contrast display
* Up to 9 hours of battery life (typical use) on two "AAA" batteries
* 500/20 waypoint/route storage
* 10,000 trackpoints and 10 saved tracks available
* External port for PC connectivity and external power
* Submersible for 30 minutes in one meter of water (IEC 529 IPX7 waterproof standards)
* Five entertaining, interactive outdoor games
Navigation features
Waypoints/icons: 500 with name and graphic symbol
Routes: 20 reversible x 125 legs/route
Tracks: 10,000 trackpoints and 10 saved tracks; automatic track log; TracBack® lets you retrace your path
Trip odometer: Current speed, average speed, time of sunrise/sunset, resetable maximum speed, trip timer, and trip distance; has separate, configurable trip computer screen
Tables: World time zones
Map datums: 100, 1 user
Position format: Lat/Lon, UTM/UPS, Maidenhead, MGRS, and other grids
Electronic compass features
Accuracy: ±2 degrees with proper calibration (typical); ±5 degrees in extreme northern and southern latitudes
Resolution: 1 degree
Barometric altimeter features
Accuracy: 10 feet with proper calibration (user and/or automatic calibration)
Resolution: 1 foot
Range: -2,000 to 30,000 feet
Elevation computer: Current elevation, resetable minimum and maximum elevation, ascent/descent rate, total ascent/descent, average and maximum ascent/descent rate
Pressure: Local pressure (mbar/inches HG), 12-hour automatic pressure trend recording
GPS performance
Receiver: WAAS-enabled, differential-ready, 12 parallel channel GPS receiver continuously tracks and uses up to 12 satellites to compute and update your position
Acquisition times:
Warm: Approximately 15 seconds
Cold: Approximately 45 seconds
AutoLocate®: Approximately 5 minutes
Update rate: 1/second, continuous
GPS accuracy:
Position: < 15 meters, 95% typical*
Velocity: 0.05 meter/sec steady state
Dynamics: 6g’s
Interfaces: RS232 with NMEA 0183, RTCM 104 DGPS data format and proprietary Garmin®
Antenna: Built-in patch
Power
Source: 2 “AAA” batteries (not included)
Battery life: Up to 9 hours (typical use)
Physical
Size: 1.9" W x 3.9" H x .96" D (48.3 x 99.1 x 24.4 mm)
Weight: 3.4 oz with batteries (88 g), 2.3 oz without batteries
Display: .92" W x 1.44" H (23.35 x 36.49 mm), 64 x 100 pixel, high-contrast, bright LED backlighting
Case: Waterproof to IEC 529 IPX7 standards
User data storage: Indefinite, no memory battery required
Need more? Further information on this GPS may be directly obtained from 
garmin.com.