Features:  

•  Sunlight-readable, four-level grayscale transflective FSTN display (1.5" W x 2.2" H; 2.6" diagonally)(160 x 240 pixels)
• 1 MB of internal memory for storing map detail
• Internal memory is preloaded with worldwide cities
• Permanent user data storage; no memory battery required
• Each day's best hunting and fishing times—along with sunrise/sunset times—on the integrated Outdoor Calendar
• Special geocaching navigation mode
• Geolocation games, such as Virtual Maze, Nibbons, Geko™ Smak, and Memory Race
• Fast map transfer, with support for both USB and serial port interfaces; navigation instructions can be shared with repeaters, plotters, and autopilots using NMEA protocols through the dedicated serial port
• Dedicated "mark", "page", "enter", "quit", "menu", "find",and "zoom out/in" buttons; four-position rocker pad
• 2.4" x 6.1" x 1.3" (W x H x D) unit dimensions
• Weighs 5.4 ounces (without batteries), 7.5 ounces (with batteries)
• WAAS GPS receiver with accuracy to 10 feet in North America; built-in quad-helix antenna for better satellite reception
• 28 hours of battery life under typical-use conditions (uses two "AA" batteries)
• Multi-platform navigation for easy navigation in a car or boat, or on foot
• Waterproof to IEC 60529 IPX7 standards (can be submerged in one meter of water for up to 30 minutes)
• 50 reversible routes, 10,000 track points with tracBack® technology (navigate to any track point on the displayed map), and 500 waypoints with additional graphical icons for location identification
• Proximity alerts for anchor drag, arrival, off-course, proximity waypoint; built-in alarm clock
• Trip computer provides odometer, stopped time, moving average, overall average, total time, max speed, and more

Specifications

Navigation Features

Waypoints/Icons: 500 with name and graphic symbol, 10 nearest (automatic), 10 proximity
Routes: 50 reversible routes with up to 250 points each, plus MOB and TracBack® modes
Tracks: 10K point automatic track log; 20 saved tracks 500 points each let you retrace your path in both directions
Trip computer: Current speed, average speed, resetable max. speed, trip timer and trip distance
Alarm clock: Anchor drag, approach and arrival, off-course, proximity waypoint, shallow water and deep water
Tables: Built-in celestial tables for best times to fish and hunt, sun and moon rise, set, and location
Map datums: More than 100 plus user datum
Position format: Lat/Lon, UTM/UPS, Maidenhead, MGRS, Loran TDs and other grids, including user grid

GPS Performance
                   
Receiver: WAAS enabled, 12 parallel channel GPS receiver continuously tracks and uses up to 12 satellites to computer and update your position
Acquisition times:

• Warm: Approx. 15 seconds
• Cold: Approx. 45 seconds
• AutoLocate™: Approx 5 minutes

Update rate: 1/second, continuous
GPS accuracy:

• Position: < 15 meters, 95% typical
• Velocity: 0.05 meter/sec steady state

DGPS (WAAS) accuracy:

• Position: < 3 meters, 95% typical
• Velocity: 0.05 meter/sec steady stateDynamics: 6 g’s
  Interfaces: USB, RS232 with NMEA 0183, RTCM 104 DGPS data format and proprietary Garmin
  Antenna: Built-in quadrifilar, with external antenna connection (MCX)
  Differential: DGPS, USCG and WAAS capable

Power

Source: 2 AA batteries (not included)
Battery life: Up to 28 hours

Physical

Size: 6.1” H x 2.4” W x 1.3” D (155 x 61 x 33 mm)
Weight: 5.4 ounces (153 g) estimated
Display: 1.5 x 2.2 inches (38 mm x 56 mm), high-resolution, FSTN (160 x 240 pixels)
Case: waterproof to IEC 60529 IPX7 standards
Temperature range: 5°F to 158°F (-15°C to 70°C)

Specifications are subject to change without notice.