| http://www.w3.org/ns/prov#value | - The Precisions Products Group specializes in DGPS integrated receivers and OEM Modules that use our patented Crescent receiver technology.Our GPS Precision products address a wide variety of location-based requirements, including hydrographic surveying, navigation, GIS data collection and mapping, marine dredging, machine control, and other applications that require reliable real-time sub-meter po
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