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Amazon.com: EM90 Mini Portable High Precision Handheld GPS Land Area Meter, Land Survey Measuring Instrument US Plug 100-240V for Forest Farmland Mountain Mining Lake : Electronics
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Amazon.com: Te-Rich Land Surveying Equipment, Handheld GPS GNSS Receiver Land Irregular Area Survey Measuring Instrument, Land Measuring Tool for Forest Farmland Mountain Mining Lake : Tools & Home Improvement
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