The handheld GPS navigator can collect various data and has basic functions such as positioning navigation, altitude measurement, distance measurement, etc. It is mainly used in field exploration and outdoor exploration. In addition, various industry application functions with specific requirements can be customized to meet the personalized usage needs of users. Old donkey friends often pay more attention to the following five elements when choosing a handheld GPS navigator:

　　The accuracy and speed of GPS positioning are the decisive factors in determining the quality of handheld GPS. Generally, it should be compatible with various mainstream handheld GPS platform software, equipped with a professional navigation engine, with professional waypoint markings, and equipped with a three-axis electronic compass. Even without GPS signal, it will not lose its direction.

　　The three defense capabilities of handheld GPS must be strong in terms of waterproofing, shock resistance, and dust prevention, as outdoor exploration and exploration require crossing mountains and mountains, exposure to sunlight and rain. General requirements include IPX7 waterproof performance, 1 meter underwater, waterproof within 30 minutes, and 1 meter natural drop resistant design to meet the stringent requirements of outdoor operations.

　　Due to the long duration of outdoor exploration, there is also a high demand for the endurance of handheld GPS. Traditional navigation devices, such as those with a range of less than 4 hours, are far from sufficient. Generally, the battery life is required to be at least 15 hours. An external battery pack can be prepared, but attention should be paid to the reliability and stability of the power interface.

　　Before departure, it is best to plan your itinerary based on an understanding of the terrain and traffic, which requires a handheld GPS with a terrain map. Its map function should have built-in national transportation details, accompanied by geographical details of each region, detailed to townships and villages, with contour lines and other terrain data maps, which can be upgraded and refined for life.

　　The functional application of handheld GPS should also have certain characteristic functions, such as mobile GIS data collection, field mapping, waypoint storage coordinates, calculation of length, area angle, and various field measurement data functions; Photo taking function, Bluetooth wireless transmission, additional functions such as photo browsing, calendar, sun, moon, astronomy, calculator, etc.

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