In recent years, with the rapid development of economy and society, the social economy continues to develop, and people's living standards continue to improve. A safe, comfortable and prosperous life is the goal that people strive for. 4g gps tracker for car is officially on the radar.

for example, if you buy a car, in order to ensure the safety of the car, you will install a 4g gps tracker for car; The child will be equipped with a 4g gps tracker for car safety; The elderly will also be equipped with a 4g gps tracker for car in case they get lost.

From the network to search 4g gps tracker for car, there will be a variety of information, how to buy 4g gps tracker for car, you can go to other articles, this article mainly introduces the purchase of 4g gps tracker for car, need to avoid some pitfalls.

1, 4G gps tracker for car No SIM card No data fee Lifetime no fee.

First of all, 4g gps tracker for car does not exist without a sim card. We can look at the principle of GPS: 4g gps tracker for car to obtain satellite signals - > through the network to send to the server - > the server to calculate the latitude and longitude and resolve the specific location - > through the PC or APP display.

4g gps tracker for car

It can be seen from the principle that the main purpose of 4g gps tracker for car is to obtain satellite signals and send them to the server, and sending information needs to use the network, that is, the network that needs a SIM card to send. So a 4g gps tracker for car without a sim card does not exist.

In fact, these are businesses to promote and engage in activities, you think 4g gps tracker for car traffic is really free? The partners who have bought the locator all know that if you buy the card together when you buy the locator, the card is generally free for a year, and the fee begins to be paid from the second year, some businesses seize this point, install the sim card in the locator, so that you can buy the card while buying the locator, and of course, you do not need to recharge any traffic fees in the first year. In the second year, the card flow of the locator is exhausted, your transaction rights time has passed, you can't return it, and even the merchant can't find it.

The built-in SIM card has a disadvantage, that is, it cannot be replaced, and the locator will be reimbursed when the SIM is damaged.

2, using base station positioning as GPS positioning.

The price of 4g gps tracker for car on the market varies greatly, with tens of dollars and hundreds of dollars. Why such a big difference?

First of all, excluding quality, manufacturer, after-sales and other factors, it is very likely that you are buying a fake 4g gps tracker for car. Many unscrupulous businesses will be the base station positioning locator as 4g gps tracker for car to fool those little white.

Base station location

What's the difference between the two?

Base station locator is also known as LBS positioning. The location of the base station is determined by the measured distance of the base station to the equipment. The positioning accuracy is also 50-2000 meters, depending on the coverage density of the base station near the location, if there are many base stations, the positioning is accurate, if there are few base stations in the mountainous area, the positioning is not so accurate.

GPS is the Global Positioning System (GPS), a satellite navigation and positioning system developed by the United States. The positioning accuracy can reach 5-15 meters.

The modules used for GPS positioning are much cheaper than those used for base station positioning. So there's a big price difference.

From the introduction of the above two, as long as the positioning error range is too large, it can be suspected that the base station positioning is used.

3, the platform is free for life

The platform is free for life, which appears in the promotional selling points of many merchants. The most important thing is whether the platform is owned by the operator or the manufacturer. If it is an operator, then I believe that the products sold by the operator can still be free for life.

If the platform belongs to the manufacturer, and the operator is only responsible for selling this piece, then be careful. The cost of using the GPS platform is ultimately handed over to the manufacturer, and the operator only charges for the service items. GPS manufacturers charge the operator platform service fee annually, but after changing the operator, the manufacturer does not recognize the lifetime free, because the operator is not a one-time payment of the manufacturer's lifetime fee, and the life of each GPS is not the same, the manufacturer can not guarantee that your machine can be used for many years, how to charge this lifetime fee.

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