I.Trek Z1 overview
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Amazon.com: i.Trek Z1 BT Data Logger GPS Receiver (Solar, MTK 32 Ch, WAAS, Auto On/Off, Bluetooth, USB, Data Logger with Google Earth Integration): Everything Else...
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i.Trek Z1 Solar Bluetooth Data Logger GPS Receiver - GPS Data ... http://www.retrevo.com/s/I.Trek-Z1-GPS-review-manual/id/22947ag408/t/1-2/ iTrek ...