How much data will 2g gps tracker use?
We all know that the use of 2g gps tracker needs to be used with a data card, but many people will talk about confusion, why does 2g gps tracker need a data card? 1. The role of flow Why does the car positioning system use traffic? On the premise, you can first pay attention to the principle of 2g gps tracker. The positioning terminal is a terminal product with a built-in GPS positioning module...
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