Garmin 152 Fixed GPS With External Antenna

The GPS 152 is a 12 parallel channel GPS receiver loaded with a waypoint database of cities and nautical navigation aids such as lights, buoys, sound signals. In addition to larger memory, the GPS 152 is compatible with the Wide Area Augmentation System (WAAS), a technology designed to improve the accuracy of GPS positioning to about three meters. On the outside, the GPS 152 comes housed in a waterproof case. A large four-inch diagonal, high-contrast display features 100x160 pixels for the ultimate in readability. A simple keypad at the bottom of the unit makes entering information easy, without blocking your view of the display. Source: 10-40v DC Usage: 5 watts maximum at 10v DC Display: 4.0 diagonal (10.2 cm) 160 x 100 pixels, FSTN with adjustable backlighting
Size: 5.0W x 4.9H x 2.5D (13.4 x 12.5 x 6.1 cm)

The GPS 152 is also available with a built in antenna for exterior cockpit mounting