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E-Survey GNSS Hub is a Marketplace Hub for Land Surveyors who purchase and use equipment sold by 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.

Vendor

G639 handheld in dense buildings

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Our G639 handheld can fully support GPS, GLONASS, BeiDou, Galileo, and L-Band. Its helical antenna can help obtain desirable positioning precision even in block environments such as dense buildings.

 

 

 

 

 

 

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