External antenna: The GPS signal of the external antenna is much stronger, making it easy to locate the vehicle over a large range. Unfortunately, the external antenna of the device allows people to know at a glance that it is receiving signals. As long as the antenna is cut off, the equipment will be damaged, so the safety factor is relatively low.

　　Built in antenna: The device is difficult to detect after installation, and it is difficult for people with malicious intentions to find the locator for damage. It has good concealment and high safety factor. However, due to the built-in antenna, signal reception is also not very good. If not careful during installation, it is easy to cause satellite search to fail or inaccurate positioning in areas with poor signal.

　　When choosing a GPS locator antenna module, it is best to choose a suitable car GPS locator based on your own usage situation. If it's managing our own car, not to prevent bad guys and thieves, of course, an external antenna is better. If it is for enterprise vehicles, rental companies, cargo tracking, etc., it is best to use the built-in ones as they are not easy to find.

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