Spesifikasi : 1. SiRF Star IV (SIRF 4 generation) high-performance GPS chipset 2. High sensitivity (-163dBm) 3. Even if the satellite signal is weak, sub-positioning is still very fast 4. Support NMEA0183 communication protocol 5. Built-in large capacitance, Can store fast acquisition of satellite signal data 6. Built-in ceramic antenna 7. With a strong magnetic adsorption on the vehicle 8. Waterproof and anti-skid bottom 9. USB or RS232 connection interface 10. With LED indicator display GPS positioning LED light : LED isnot enabled On:Receivesignal LED Blinking: Located 11. WAAS ENGOS is supported.