GARMIN eTrex Summit

Features:

• Portable, robust, to be operated with one hand (buttons are located ergonomically on each side of the unit)
• Large, easy to read display with background illumination (64x128 pixels)
• Multilingual user interface in Czech, Danish, English, Finnish, French, German, Dutch, Italian, Norwegian, Polish, Portuguese, Spanish, Swedish and Turkish (requires firmware version V2.06 or later)
• Integrated 12 channel receiver with very sensitive built-in antenna
• Electronic compass to check heading while not moving¹ (can be turned off so safe power, accuracy ±5°, resolution ±1°)
• Barometrical altimeter for precise elevation recording², accuracy ±3 m (10 feet), resolution ±30 cm (1 foot)
• Powered by batteries (2x AA, last about 16 h) or by an external 12 V power source, e.g. from a car's cigarette lighter (power cord available as an option)
• Short time to first fix (TTFF³: approx. 15 seconds after a warm start, meaning there are valid coordinates of the satellites available, or approx. 45 seconds after a cold start, meaning there are no valid coordinates of the satellites available)
• Supports the following protocols for data exchange with PC: NMEA 0183 with 4800 Baud, GARMIN, GARMIN DGPS, Text, RTCM IN, RTCM/NMEA and RTCM/TEXT
• DGPS (Differential GPS) ready (GARMIN differential receiver available as an option)
• Supports more than 100 different datum (coordinate systems)
• Supports various display formats include the Swiss Grid
• Firmware stored in Flash-Memory, can be updated by the user
• Operating temperatures -15 .. 70°C (5° .. 158°F)
• Serial interface RS-232 (connection cable available as an option)
• Dimensions: 112x51x30 mm (4.4x2x1.2 inches)
• Weight: 150 g (5.3 ounces, without batteries)
• Water resistant up to approx. 3 feet (1 meter) for about 30 minutes

• ¹) In order to check the heading with a GPS, a minimal movement with a speed of at least 5..8 km/h (3..5 mi/h) is required. Where no movement is not possible, a compass is needed.
• ²) Even though a GPS provides accurate elevation information, the value slightly varies continoulsy. A barometrical altimeter is therefore more accurate, especially when summarizing elevation changes.
• ³) TTFF: Time To First Fix, time until the first information about the current position is acquired.

Information for navigation:

• Stores up to 500 waypoints with name (up to 6 characters), icon (choice of 20 symbols) and coordinates
• Stores up to 20 reversible routes with up to 50 waypoints each. Shows the current position in relation to these waypoints (direction and distance)
• Bearing (electronic compass)
• Current position (longitude, latitude, altitude)
• Altitude via air pressure (barometer)
• Current accuracy of the position information
• Current time
• Current bearing
• Current, average and maximum speed
• Trip duration and distance (Odometer)
• Total ascend, total descend, average ascend, average descend, maximum ascend, maximum descend, minimum and maximum altitude
• Air pressure tendency over the last 12 hours
• Stores 10 travelled routes (Tracking)
• Time of sunrise and sunset
• Supports metric and U.S. units