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      GPS early warning device by magellan gps satellite early-warning device in the GPS coordinates to complete the set, such as encountered in an electronic eye, and then related equipment under the electronic eye is the establishment of a coordinate, so that makes the coordinates loaded early warning data device to reach this point, the coordinate point is reached about the first 300 meters will begin early warning, telling the owner in front of an electronic eye speed, not speeding, so play the role of an early warning. With such accuracy the number of data points are related, mainly using satellite positioning to achieve. This electronic eye of latitude and longitude information for early warning of the approach, the key is to update the data of electronic eyes. Drawback is that this product can not be measured liquid velocity, that some anti-gun type of gps navigator, such as early warning Triumph Smart GPS, with anti-speed radar machine system, gps systems for early warning and anti-speed radar early warning aircraft, two systems working together, can achieve a comprehensive electronic eye early warning function.
      Throughout the domestic gps navigation market, less than a thousand dollars from the price of hand-held product to up to million-car navigation systems, functional styles vary, but the high price of car navigation systems, and therefore not conducive to carry the election except when the car installed, the people more willing to accept small, portable handheld products. From the sales point of view, occupy the market position is the backbone of the high-end navigation products, which generally prices were down in the 2,500 to 3,500, compared to the market thousands below the low end gps navigation system, both of these products exterior design and performance in such aspects as superior. The purchase of the consumers using navigation systems are mostly stable income white-collar workers. Young and restless in their fashion more receptive to the convenience of technology on life. Please visit TradeTang.com.