What should I pay attention to when choosing a QR code reader?

Now, when you enter and exit some important occasions, you can use the mobile phone to scan the QR code. This system is called the QR code access control system. In order to realize this door opening method, you must also match certain Hardware devices, including QR code readers, if you want to set up such a complete access control system, you must use a QR code reader, what issues should you pay attention to when choosing?

First, after-sales maintenance issues

For the QR code reader, this is a high-tech access control product that incorporates a high level of technology, so in this case, in the event of a malfunction or other problem, there is no outsider. The method to repair, only to find a professional talent to be able to repair the fault in time, so as to ensure its normal use, so when choosing this card reader, you must look at what after-sales service can the manufacturer provide? If their after-sales service is relatively complete and timely, then such a QR code reader is generally worth choosing!

Second, the reaction speed

Many people want to be able to find a mobile phone that responds faster when they buy a mobile phone, because this mobile phone can get a better experience when it is used. For a QR code reader, Its response speed requirement should be higher, because in some important occasions, there are many people entering and leaving every day, and even there may be a need to queue up for access control. If his reaction rate is slow, it will seriously affect people's Travel speed, such as in the subway station, so when choosing, you should also choose those readers that respond faster!

In many access control systems, this kind of two-dimensional code reader is needed. Through the application of this device, people can provide security for people, so its application will become more and more extensive, but it also needs to reach a certain level. The technical standards can play its functions and functions!