Four functions of smart lock are introduced, easy to choose smart lock!

When we buy smart locks, we often get stunned by hype. Smart locks have many functions, but many times we don't know which functions are necessary. Sum up for everyone today, after buying a smart lock will not be confused.

Fingerprint unlock

Easy to use, high security, you can also set different fingerprint rights for different people.

In particular, the semiconductor biometric biometric fingerprint recognition head only recognizes living body fingerprints, has high security, fingerprints cannot be duplicated or copied, has a very high sensitivity and recognition accuracy, can acquire finer details of fingerprints, and has faster acquisition speed; the recognition rate is high. It is free from the effects of fingerprints, wet and dry, and can avoid misunderstanding and rejection.

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Unlock password

It is easier to remember and the length of the password can be customized. You can also change the password at any time.

Many brands of smart locks have the function of a virtual password anti-peeping function and a low-privilege temporary password, which ensures that the security of the master password is not compromised and effectively solves the risk of digital passwords being peeped.

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Summary: Fingerprint unlocking and password unlocking are the two most common unlocking methods for smart locks. If you have an elderly person or a child at home, you are recommended to purchase a smart lock that is mainly based on fingerprints. After all, unlocking fingerprints does not require memorizing. When you walk to the door, you can open the door. Still more suitable for the elderly.

With spare mechanical key

Smart locks are generally equipped with a USB emergency interface to prevent power outages, and an alarm will be issued when the power is low to remind the user to replace the battery.

In spite of this, the public security department still expressly stipulates that smart locks must be equipped with an emergency mechanical key to prevent the smart lock from being used and to open the door lock.

In addition, the key can also be used for the elderly, more in line with the old people's habits, but also reduce the burden they may need to remember the password.

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Remote control

The characteristic of the smart home is that it can be controlled remotely. The smart lock with remote control function can also realize the function of remote door opening and remote monitoring. It can allow relatives and friends who have arrived at home to enter the room after permission.

Although there are so many benefits to remote unlocking, the risk is too great in terms of the intrinsic security of the lock. After all, the technology of remote unlocking is indeed not mature. Regardless of whether it is ios or the android system, there are security risks. Once the mobile phone leaves the company, it is very easy to risk identity fraud.

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No Drilling Mechanical Stage Cementer

The type of drill free Grading Cement Injection Device is manily used in straight wells.The strucure is an internal closure structure.When it is opened,it is put into the gravity plug  from the wellhead to open the circulation hole.When it is closed,it is put into the closure from the wellhead to drive the closure sleeve down to close the circulation hole.At the same time,it close the circulation hole.The graded cement injection device will be separated from the outer cylinder and will fall freely to the bottom of the well.After the completion of the well,through the special salvage tools will be graded cement injection and blind plate core recovery.

No Drilling Mechanical Stage Cementer (Salvage Type)

Mechanical Stage Cementer ,Drilling Free Cementing Stage,Supply Oilfield Cementing Stage

Puyang Junhong Rubber Co., Ltd. , https://www.pyjhxs.com