At present, most of the digital vehicle tracking device no monthly fee on the market are double-sided PCB boards, that is, the GPS antenna on the top, and the stacking components on the bottom. In these components, there are usually three LED particle lights of different colors. With this type of LED indicator, technicians can intuitively judge the working status of the GPS positioning device, but it should be emphasized that the vehicle tracking device no monthly fee of different manufacturers, the LED color expression status is not consistent.

The GSM indicator of vehicle tracking device no monthly fee is usually red or yellow. The GSM indicator is mainly the status display of the communication module, which has nothing to do with the communication mode of the communication mode. When the GSM indicator is always on, it means that the work is normal. When the light flashes, it means there is a communication failure. When the GSM indicator is off, you need to check the power status of the vehicle tracking device no monthly fee.

The GPS indicator of vehicle tracking device no monthly fee is usually green. The GPS indicator is mainly for the status display of the positioning module. It has nothing to do with the positioning mode of the positioning mode. When the GPS indicator is always on, it means it is working normally. When the GPS indicator is flashing Indicates that there is a communication failure. When the GPS indicator is off, you need to check the power status of the vehicle tracking device no monthly fee.

The PCB power light of vehicle tracking device no monthly fee is usually blue and other colors. The PCB power light is mainly the status display of the PCB power supply of vehicle tracking device no monthly fee. When the PCB power light is always on, it means that the power supply is working normally. When the power light is flashing, it indicates a power failure. When the PCB power light is off, you need to check the power supply of the external or internal power supply.

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