Arduino GPS Shield & Active GPS Antenna Bundle

Simple, powerful and portable–the first vehicle navigation device for everyone
Same user-friendly interface as Magellan RoadMate 700 and Hertz NeverLost system
Major North American roads map preloaded into 128 MB internal storage, more map storage available via SD Card slot

Clear distance and direction to the closest geocache along with information like size, terrain, difficulty, and GC code
High-sensitivity GPS performance with core GPS functions like current position, height, and heading
A “found” list allows you to mark geocaches as found and review them later

Track and train a combination of twenty TT 10 dog devices or Alpha 100 handhelds simultaneously from up to 9 miles away
Alpha 100 handheld features a 3-Inch glove-friendly color touchscreen
Includes preloaded TOPO U.S. 100K mapping for terrain contours, topo elevations, summits, parks, coastlines, rivers, lakes and more

Compact GPS personal locator with intuitive 2-button design and ergonomic shape
High sensitivity GPS receiver and self calibrating digital compass
Stores up to 3 locations; returns you to your car, home base, or anywhere else