Garmin GPS eTrex 30 手持GPS定位仪

Plant size (large, high, thick) 2.1 "x 4.0" x 1.3 "(5.4 x 10.3 x 3.3 cm)
Screen size (width, height) 4.1 "x 1.7" (3.5 x 4.4 cm) 2.2 "(5.6 cm)
Screen resolution 176 x 220 pixels
Type TFT, 65.000 colors
Weight 141.7 grams with battery
Battery type 2 AA batteries, NiMH or Lithium
Time about 25 hours battery life
Operating temperature range from -200 C to 700 C
There are waterproof, IPX7 standards
Alarm clock Yes
Warning on danger zone there
There is a high sensitivity receiver, received signals from two satellites at the same time the U.S. GPS system and Russia GLONASS
Computer interface with USB port
Map of the world map and a map of Vietnam
The ability to upgrade maps
1.7 GB Memory
Support Micro SD card slot card (without computer)
Memory point coordinates (Waypoint) 2000 waypoints
Set the 200 journey journey
10.000 Track log points; 200 saved track
Barometric altitude measurements have
There are electronic compass
Share data with Wireless Yes, with compatible Garmin GPS
There are image-guided
There Routing Function
Calendar satellite (for date, time, measure the best)
Information moon, the sun there (sunrise, sunset; moon set, moon rising)
It features the area
There Function Custom Maps