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E-Survey GNSS Hub is a Marketplace Hub for Land Surveyors who purchase and use equipment sold byย Esurvey GNSS of Shanghai.

Founded in 2005, Shanghai e-Compass Science & Technology Co., Ltd (hereinafter to be referred as Shanghai e-Compass) is located in Shanghai, specialized in surveying and GIS industry, integrating R&D, manufacture and sales.

The main products include data acquisition and positioning equipment such as high-precision GNSS receivers, GIS data collectors, combined inertial navigation products, UAV positioning products, and data application solutions such as displacement monitoring systems, intelligent driving test systems, and precision positioning service systems.

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Our G639 high precision handheld is equipped with helical antenna: it provides all-corners signals reception, without missing any weak GPS signals. It can receive satellite signals well at all angles.
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