The US355 S4, by GlobalSat, GPS Receiver can be utilized in a variety of applications that may require a magnetic mounting with a waterproof configuration. With non-slip material on the base and its compact design, the BU-355 is completely self-contained and waterproof. It incorporates the latest SiRF Star IIII GPS chipset and an active patch antenna so you receive the highest degree of GPS accuracy. GPS receiver cable terminates to a Serial Port with a PS2 connector for power.
Product Accessories for USGlobalSat BR355-S4 Serial GPS Receiver