The first time I cared about the safety of my door lock was because some families in the community where the new house was bought were stolen. This stainless incident caused me to pay attention to the safety of my door lock, so I finally found out what was A-level after understanding, Class B and the super class B or some of them are called class C lock cylinders in recent years. I have used two class C lock cylinders with a price between 500-300. They use letter beads, serpentine grooves and other combinations to strengthen technical anti-theft. Although it sounds safe enough, isn't it? However, I still have an embarrassing obsessive-compulsive disorder, that is, every time I lock the door, when I leave the community, I suddenly realize whether I have locked the door?! So I have to go back to confirm.

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Today, the door lock that can solve many of my symptoms is the Deshman small tick T750 intelligent door lock. As the leading manufacturer of intelligent fingerprint lock research and development in China, Deshman has released a number of products and its sales in the domestic market are very good. In addition, Deshman has sales companies and websites in Germany, Singapore, Iran and other countries, and its popularity should also be good, He is also the main drafter of the electronic lock industry standard of the Ministry of Public Security. The latest T750 is also the latest product of Xiaodi series sub brands. It adopts a full alloy lock body, slide design, and supports password, Bluetooth, fingerprint and other ways to unlock. The most important and my favorite function is the automatic latch pop-up design, which eliminates the need for consumers to turn the key several times more.

Next, let's see the real appearance of the smart door lock T750.

 Packaging overview

Because of this trial, my door lock needs to be customized by the manufacturer, so I waited patiently until I finally got to the small beeper. I wanted to measure how heavy it was, but the kitchen baking weighing range I used was too small to measure the weight of the small beeper, so I can be responsible to tell you that the small beeper is really heavy, and it is really solid after all, it is designed with full alloy materials.

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The white package is simple all around, and the front is only a small color logo. The shape is also very vivid, just like the door of a home, to protect the family safety.

The QR code on the side is the identification of T750. It is very important because it is also the only ID code used to connect to T750. Please do not expose it to others. I have already dealt with it, so don't worry about me.

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At the first sight after opening the box, this tag is: it is worthy of the first lock of your new home, and the slogan is very loud. Is it worthy of it? We need to look at it slowly together.

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The top layer contains the door frame sidebar, instructions, etc. It is necessary to explain in advance that the stainless steel edging is of solid workmanship, but it cannot be used during installation. The reason will be mentioned later. The big box in the middle is the lock body, and the keys and screw accessories are on both sides. The interior is wrapped with foam for shock resistance, which is safer.

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Four batteries are included when leaving the factory. After all, the considerate service of such expensive smart door locks should be meticulous.

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The next layer is the front and rear door lock panels. The shell adopts zinc alloy+electroplating process, which feels good. The back is also covered with a metal protective cover. Important electronic components are well isolated from the door panel, making it safer.

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The door locks I received are similar to champagne gold, with a left open design, and are protected by plastic film to prevent scratches during transportation.

There are a lot of boxes and accessories.

These two small boxes are physical keys, screws and other accessories.

They are all protected by plastic packaging, and there is no need to worry about damage and leakage.

 Xiao Di explains in detail

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The main specifications of Xiaodi T750 can be seen from the table that the software and hardware quality of Xiaodi T750 is excellent.

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Three physical keys and one Bluetooth key were included. The physical key adopts multi row double-sided blade design, and the double page design has reached super B (C) level in terms of level. The Bluetooth key is more scientific and can be used independently of the mobile phone for the elderly or children at home.

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The inner panel structure is not complicated, including the battery compartment, the anti lock paddle, and the important door lock electronic main board control unit,

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There is also metal protection isolation. This design can ensure that the main control unit will not be damaged and the door lock will not be opened when the outside is damaged.

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The QR code in the battery compartment functions as the one on the outer package, and is also used to connect the mini smart lock.

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Some parts of the handle are spliced well, and there is no problem of too large or uneven gap. Slightly damped, the handle can be pressed down smoothly.  

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The bottom of the front panel is the Bluetooth switch, which is used to turn on the lock Bluetooth when connecting mobile phones and some settings.

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The front panel is slightly more complicated because it contains slide cover design, keyboard and fingerprint identification module. The LOGO at the bottom is touch sensitive. When it lights up, you can use the Bluetooth of your phone and the Bluetooth key to open the door. The sliding cover adopts a 2-segment design. After the first segment is opened, only the fingerprint identification module can be exposed, and the second segment can expose the keyboard using password.

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It can be seen from the back of the sliding cover that a lot of lubricating oil has been applied at the time of delivery. It can be seen from the manufacturer that this amount is thick, so that the sliding cover can be used smoothly in a long time. The silver chrome plated strip decoration of the sliding cover also looks more atmospheric.  

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There is an inconspicuous black button on the outer panel. This button is used to make a sound and send a message to the mobile phone for alarm when the front panel and door panel are loosened due to violent disassembly of the outer panel.

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All wire connectors are well designed, and the wrapped protective layer is very strong. However, there is no design of wire storage guide channel, so it is a little inconvenient for wire storage during installation.

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The overall difference between the lock body and the normal lock body is not great, but the most obvious difference is that the lock cylinder is not inserted directly, and a connecting line is added. It should be noted here that the Xiaodi series solid lock cylinders are not designed in the lock body, but in the front panel, through the lock body paddle to achieve the cooperative work purpose, Therefore, the front panel alarm anti prying design mentioned above is a very important function. If the safety performance of the in-line lock cylinder on the lock body is increased, it will be even better.

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The latch part of the Xiaodi lock body is made of stainless steel, which is more solid and resistant to damage. At the same time, the upper latch can automatically eject the latch mechanically through the door opening and closing collision, so as to cure patients with forced loading such as me. In addition, if the door lock is open and the latch doesn't fully eject, the user can also be prompted, but I haven't actually tested this kind of situation, Basically, after closing the door with force, the locking tongue can be fully ejected smoothly. In addition, the lock hole can be seen from front to back, which is not a good design. If it can only be exposed to the inside, it is better. Even if the front panel is removed violently, the lock cannot be unlocked.

▄ Door lock installation

Although I had the experience of replacing the lock cylinder twice, after I saw the instructions of the Little Dipper and many complicated accessories, I would give up. Such complicated work was still done by a professional master, so I made an appointment with the master through the official customer service of the Little Dipper Door Lock at night. The customer service said that it would be installed in 1 to 3 days, and someone contacted me the next day, However, on the same day, the master installed it outside and it was far away from the community where I lived. At that time, he did not give me the exact time. When I thought that I could not install it within three days, the master called me early the next day to install it.

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First of all, this is the original self provided door lock, which can be compared with the installed mini door lock later.

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The master is very good. It's easy to chat and learn about the master's installation of the intelligent fingerprint lock from the side, the general installation time and so on. The door lock removal was OK, and I also took the initiative to turn on the flashlight lighting for the master. Because there was a serious sandstorm in my city on the day of installation, and the light was poor. Seeing the master working so hard, I would also extend my hand to help him when necessary. A harmonious society would like to help others like this. After the door lock was removed, it seems that the master is very familiar with it. The manual does not need to look at the latest T750 model. Basically, the parts assembly and panel installation are very familiar. However, my door still has a little problem. The opening is slightly low, so the master needs to cut it a little. At first, I thought that the final door lock would show a little bit of the original opening at the bottom, Fortunately, the rubber and metal gaskets provided by Xiaodi are completely invisible after installation! Only two words can describe the perfect mood at that time!

The edge of the door frame is where I want to complain. Although the edge of the door frame issued by the manufacturer is very wide and uses a lot of materials, it is too wide for my door frame to use. The master laughed that the manufacturer is too willing to spend money, and it is useless to issue such a wide edge. Maybe there was a size deviation when sending data in the early stage? But Shifu immediately took out a suitable sidebar from his pocket and installed it immediately. It seems that Shifu Yang has come here prepared. Maybe this happens often, too? The installation master of the sidebar was also very careful. He carefully punched, installed and leveled the sidebar. Although some of the original holes could be seen after installation, they were not original, so they were very good.

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The whole installation took about 2 hours, which was relatively smooth. The master also answered the questions about the use after the installation. Thank you very much for the hard work of the installation master who worked with Xiaodi.

 Use of Xiaodi App  

Before use, let's take a look at the main door opening skills of Xiaodi T750

Door opening mode: mobile phone, fingerprint, password, key

Number of fingerprint users: 80

Number of mobile phone users: 150

Number of door opening records: unlimited, cloud storage

Alarm function: low voltage alarm, anti prying alarm, trial opening alarm, hijacking alarm

Alarm mode: send information to the designated mobile phone

For the first use, you need to add the QR code of the door lock by scanning it after installing the mini butler (you need to press the battery to power on, and press and hold the Bluetooth button on the inner panel to open it).  

At present, Xiaodi butler supports the management of its three major categories of products: visual cat's eye, fingerprint lock and intelligent access control. The personal center naturally doesn't need to say much. Property service should be supported by the cooperative community. At present, installation and maintenance can launch maintenance orders when smart sees them. Installation orders are not clear how to use them. However, it is simpler to contact the manual customer service directly than to initiate the software.  

After adding successfully, you can customize the door lock alias. After entering the App, the door lock added will be displayed directly. Further settings can be made by clicking the gear icon. This level supports mobile phone shake Bluetooth unlocking, digital password unlocking, graphic unlocking, and there are many ways to unlock mobile phones, which makes the door locks that are safe and serious more playable (this option is also used to authorize others to open the door with their mobile phones).

Bluetooth can only be used after being associated with the smart key option in this layer's settings,

It should be noted that many settings require Bluetooth connection to the door lock on the phone. When I am pleased, the butler app on the phone gives a prompt. It will not be difficult for those who can't use it for the first time. The following settings will not repeat the Bluetooth connection process.  

However, to access the authorized door opening and advanced settings, a second password verification is required. The original purpose is to prevent others from setting at will. However, on the IOS side or other mobile phones that support fingerprint identification, password free opening can be achieved, and mobile phone fingerprint identification can be directly opened.

Mobile phone door opening authorization or temporary password authorization can be selected for authorized door opening. Compared with temporary password authorization, it is more practical, because the authorized person needs to download the ticker steward to use mobile phone door opening authorization.  

The use of temporary password authorization is somewhat troublesome. You must first enable temporary password generation in the door opening password option in advanced settings. Each time you can generate 10 groups of keys, and each authorization will reduce one time. In addition, the security of temporary keys is very high if you use them intelligently once, However, it should be noted that once the 10 groups of keys are used up, the next group of keys can be generated again only when the Bluetooth connection beeper locks the door.

The lock door opening password is also set in this option. The set password can be entered through the front panel key panel to unlock.

Under the lock information option, you can set the lock to be associated with the wifi in your home. This setting is very important. This step is required for all SMS, App push, and lock release record upload. Therefore, it is recommended that you set this content first, and then enable the record upload function below. At the same time, lock details can view the status of the current lock, the remaining fingerprints, the number of users, and OTA can also upgrade locks.  

Once the record upload is enabled, you can view all records through the record query function. The butler of Xiaodi has set six query modes according to the unlocking method, but here I think that every time the lock is unlocked, the app can be automatically pushed to the owner's mobile phone. The network method is more convenient, and the records can be saved without going through cumbersome steps to enter the option of viewing records. SMS+App notification push can be used for alarm and kinship association.

User management can add multiple users. Each user can set fingerprint and fingerprint effective time to effectively control the time limit for certain specific groups of people to unlock, such as hourly workers, nannies, etc. The fingerprint entry process is basically the same as that of mobile phones with fingerprint identification.

Familiarity settings can associate multiple users to the owner. When the associated user unlocks, it can be pushed to the owner's mobile phone through SMS and App information to notify family members of their arrival in time, especially for the elderly and children.  

Alarm settings can be set with two alarm modes: password alarm and fingerprint alarm. Specific passwords and fingerprints can be silently notified to the owner's mobile phone. Although the current security is good, the alarm fingerprint or password can be used to open in case of being coerced.

After the actual use of kinship and alarm notifications, the time from opening the door to receiving SMS or App notifications on the mobile phone is about 20 seconds. According to the family wifi network situation, there will be differences at different times. This is just for reference, but this time is basically relatively timely.

 Little Di unlocks and uses it

Here I will demonstrate the main door lock operation modes through GIF pictures

The inner panel can be locked vertically through the knob

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The speed of fingerprint unlocking is really less than 1s. The time from opening the front panel cover to the final unlocking is less than 2-3 seconds, which is much faster than the traditional unlocking method.

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The password can be unlocked. The password supports the longest 64 bit virtual digit hybrid mode. As long as 6 consecutive digits of the entered number are correct passwords, you don't have to worry about password leakage even if you are peeped by neighbors or others.

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After the touch-screen ticker LOGO lights up, the Bluetooth is turned on. At this time, you can unlock the phone or the Bluetooth key. The Bluetooth key can be unlocked by matching the blue light of the button with the small beeper, which can be used as a standby unlocking method or for the elderly. In fact, it seems to me that the phone will not be specially selected for unlocking in most cases. It is convenient and fast to use fingerprint or front panel unlocking for the owner and his family with advanced permissions. It is not necessary to take out the phone but also need to turn on the Bluetooth function of the beeper in advance to use such methods as shake, phone password, phone pattern (and it also needs to open the app), However, in the case of authorizing others, this method also has certain confidentiality and security.

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When the key is used to open the door when the battery is exhausted (usually the beeper door lock will also give light and sound warnings when the battery is low), you can choose to use the spare physical key to open the door. The door opening method is no different from the traditional one, but the lock hole is hidden below. However, it should also be noted that even if the battery runs out, the lock can be unlocked through the USB interface at the bottom by using the power bank to power the lock. It can be said that Xiaodi has also set reasonable options for unexpected situations.

 Use experience of Xiaodi intelligent door lock

From installation to actual use, pre-sales, after-sales and technical support are all very good

It only took about 2 days from the actual installation by contacting Taobao customer service. Of course, if the user's region is not the location of the lock installation cooperation company, it may take more time. Therefore, it is recommended that you confirm with customer service in advance whether there is an installation company directly in the region, which can save more time. During the actual installation, the cooperated technician was also very good, and the installation was in place seriously and responsibly.

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In the actual use process, I have many questions also through after-sales customer service, customer service can give detailed feedback within its support scope, and can also communicate with the customer's technical personnel of other companies for difficult problems. In fact, I talked through Cheng Xiaodi's technical personnel by phone, and the conversation and explanation were very pertinent and detailed, I have a good impression that a good IKEA company needs not only good products, but also customer service.

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I summarized the advantages of the small door lock and the areas that need to be improved:

advantage:

All alloy casting, electroplating process, strong resistance to damage, good appearance and feel

Reasonable design of battery and external charging interface, long standby time

The fingerprint module has fast recognition speed and simple and convenient entry.

The response speed of kinship management and alarm notification functions is very good, which can be sent through SMS and App push.

The front panel provides a protective slide to prevent fingerprint and password keyboard modules from aging or reduce the possibility of damage

Stainless steel casting of lock body and tongue is more solid and safe

The automatic pop-up function of the door closing latch is excellent

The rotating shaft runs smoothly and the parts are connected smoothly

Support mobile app connection settings and mobile phone door opening. Bluetooth key door opening provides a variety of door opening methods in different scenarios

Place the crowbar lock on the front panel to provide alarm function

The following can be improved:

The indoor panel wrench can be made into an oval shape to prevent the cat's eye from prying the lock

The lock body uses an in-line lock cylinder for better safety.

It is certainly not free to provide a lock master to measure the locks at the door. For example, it needs to pay 100 yuan. If the final order is placed, the cost of the locks can be deducted. If the order is not placed, the cost will not be refunded. Because I carefully read the purchase evaluation of the Xiaodi door lock, and found that many users have problems such as the installation of the door lock is not smooth due to inaccurate measurement, and the opening of the door lock is exposed, In fact, these problems can be avoided in advance if the locksmith measures them.

The mobile phone app supports the function of mobile phone fingerprint access to advanced settings. The door lock can be unlocked by fingerprint, so the app naturally needs to support it

Can you provide a message that the door is locked? Of course, this requires some additional time for physical parts, but I believe that it should not be difficult for such a highly electronic beeper, such as adding door magnetic induction.

As the latest T-series smart lock, the Xiaodiyun T750 has improved both in appearance and security. If you are as compulsive as I am and also worried about the safety of door locks at home, the Xiaodiyun smart lock, which is convenient to use, easy to install and comfortable after sales, should be a good choice for you. ‍‍

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