First, don't choose a car early warning device with clouds. The early warning device with cloud is booming in the market, and every electronic dog manufacturer is promoting this so-called high-tech product with SIM card that can be automatically upgraded. However, due to several months of complaints, such as "missing report, false report, great interference, unable to connect to the Internet for automatic upgrade" and amazing return rate, the price of cloud early warning device has fallen below 500 yuan.
Second, don't choose a multifunctional car early warning instrument. After the failure of popularization, manufacturers quickly put the multifunctional automobile early warning instrument into the market. In order to catch the eye, the car early warning instrument is equipped with "driving record function, navigation function, cloud automatic upgrade function, color screen touch, etc." The truth is that all major websites are fighting price wars. In order to survive and make meager profits, they can only sacrifice the quality of the machine. In addition to many functions, the biggest problem of this kind of machine is that each function will interfere with each other (because high frequency will contradict each other), which is bound to be at the expense of early warning accuracy.
Third, don't choose imported brands or foreign Chinese character machines. Ironically, many manufacturers are promoting themselves as "American, Canadian, German" and other imported foreign brands, and even selling foreign language machines and "China Edition" in flagship stores. The main characteristics of this cottage "imported brand" are high price, almost all domestic fixed data are outdated and incomplete, mobile signals can not match the domestic traffic police frequency band, and manufacturers can not provide foreign invoices and import documents after purchase.
Fourth, choose the machine with the latest early warning technology.
Fifth, choose a machine with good after-sales service. Usually, the warranty of big manufacturers is one year. I suggest you order in official website.
What kind of car early warning device is better? Car owners can choose an accurate and easy-to-use car early warning device by looking at these five points, so as to avoid fines and eliminate points deduction.