GPS Imtuvas Holux GR-213U GPS Receiver/ USB/ Waterproof/ SIRF Star III/ 20 Channels/ WAAS, EGNOS support/ Hardware Tracking Loop Processor/ Extremely fast TTFF/ Linux support/ 42x64x18mm

GPS Imtuvas HAMA USB GPS RECEIVER SIRF3

GPS Imtuvas Holux M-1000C GPS Receiver/Data Logger Bluetooth/ 66 Channels/ WAAS, EGNOS support/ Li-ion Rechargeable and Changeable Nokia Compatible Battery, 20h/ Sensitivity 165dBm/ 4Mbit Flash memory for 200,000 log data recording