Spartechnik Marine GPS Receiver SA-320 Marine GPS antenna with waterproof, anti-UV, anti-acidity and anti-alkalinity protection. Low power consumption. Pole or through hole mount. The RS-232 version comes with 10 meters of ending in bare wires. You can connect the Sa-320 to Apelco Raytheon Echopilot Furuno Garmin Genonav Humminbird icom JRC Lorenz Lowrance M-Tech MLR Magellan Navicom Navman Neptune Northstar Polmar President Uniden Raymarine Seiwa Shipmate Siemens VDO Simrad Shipmate Standart Horizon Yeoman, Midland Neptun - please ask for full list of compatible devices. 12 Channel tracking - Support Standard NMEA-0183 at 4800 bps baud rate - On-board rechargeable battery which sustains the real-time clock and memory for faster power up and first fix Major VHF channel Interferencefilter, Perfect Static Drift for both speed and course, Magnetic Declination compensation, Reverse polarity voltage protecti Scope of supply: SA-320 serial GPS receiver, CD with driver & manual, Screws, Flat mount. Optional: Glomex Reling Mounts