[Preface]

According to incomplete statistics of the Ministry of Public Security, in recent years, the annual loss of family property caused by theft in China is up to 113 billion yuan, of which 51.8 billion yuan is stolen due to door locks. The security of anti-theft door locks has increasingly become a hot and difficult issue that people pay attention to. The anti-theft coefficient of traditional anti-theft door locks is too low, while the burglar unlocking technology is increasing. In the face of such a severe situation, intelligent locks such as password locks, fingerprint locks, gesture locks, iris locks and so on have appeared in the market, but the price of thousands of yuan at every turn has deterred ordinary consumer families. How on earth can we stop families from worrying about "locking"? Today, the author brings you the Snail Housekeeper Smart Latch, which costs only 588 yuan and is called 100% anti lock technology.

[Principle]

The term "door latch" originated from A Dream of Red Mansions. It refers to a wooden or iron bar inserted in the door after the door is closed, so that the door cannot be pushed open.

Time and space transform to modern society In our building, the latch is also the anti lock button of the security door. The mechanical lock can be unlocked and cracked by technology through the keyhole. However, after the door is locked inside, all these technical unlocking means fail , must be opened from inside. Snail Housekeeper Smart Door Latch uses this principle to intelligently control the anti lock button, so that the anti-theft door can be locked even outside the door, thus preventing 100% technical unlocking.

Appearance

　　 The outer package of the snail steward is very simple and eye-catching. The green kraft paper box is wrapped in red wrapping paper. The product's LOGO, slogan, QR code and other information It is distributed on each plane of the packing box.

In the packaging box, in addition to the host of the smart latch, there are snail keys, fixed base, No. 5 battery, installation instructions and operation instructions.

There are four colors available for the smart latch: gold, silver, blue and red. The author got the blue one. Personally, silver and gold are easier to match Security door matching.

When I first got it, I felt that the product was slightly larger The size is 156 * 40 * 40mm 。

The front of the fuselage is made of piano baking paint, and the bottom is made of engineering plastic. The overall design is round Fine workmanship and excellent hand feel.

Above the front of the fuselage is a circular switch button with a diameter of 40MM. All functions of the smart latch are operated through this button The outermost circle of the button will Different function operations twinkle Different styles indicator light.

There is a blue square fixed base snap button at the corresponding position on both sides above the black base, which is used to fix and remove the latch on the door lock.

There is a "master adjustment wheel" at the tail of the fuselage, which is used to adjust the level of the latch and the anti-theft door.

　　 Black base The upper part is an adaptive buckle groove, which is used to rotate with the anti locking button to apply force to open or close the latch.

　　 Black base The middle position is the battery compartment, horn and direction switch.

Black base Below is the balance base. The maximum adjustable balance base of 2CM can be adjusted through the "master adjustment wheel", which greatly adapts to the height difference of different door locks, so as to keep balance with the anti-theft door There are two round magnets at both ends of the base, which are used to attach to the anti-theft door.

The fixed base is used to fix on the door lock and buckle together with the smart door latch. The back is bonded with 3M adhesive, which is stable It is solid but not easy to remove.

The snail key design is very small and cute, suitable for hanging on the key ring with other keys. The key is connected to the smart latch via Bluetooth 4.0 technology, and adopts 128 bit military level encryption algorithm, which is not only safe but also has minimal power consumption. MicroUSB interface is used for charging, which takes more than 20 minutes to fully charge, and the battery life can last for nearly a month at a time.

【APP】

The APP interface of Snail Housekeeper Smart Door Latch is very simple. There is only one round button on the main interface to bind, connect, switch and lock the door latch, which is similar to the round button design of the door latch.

There are two menus at the upper left and right corners of the main interface, which are used for automatic lock closing, voice prompt, activation and switching of latches and other functional operations. Unfortunately, the trial version does not have the option of unbinding, so you cannot cancel the binding. It is said that this function will be available in the next version. Let's wait and see.

There are red dots on the option menu of voice prompt and automatic lock closing settings. I really don't know which option I have chosen. I suggest you change it to let users know at a glance.

Trial

First use Wisdom Latch It needs to be activated by mobile phone and bound to APP. The activation can be completed step by step according to the tips of APP. It is basically a fool's operation, without any difficulty.

Then we need to pair the snail key with the smart latch via Bluetooth. By long pressing the latch rotation button and using voice prompts, we can pair successfully almost once.

The installation of the smart latch is very convenient, and it is easy to install it in three minutes. First, clean the door lock panel and paste the fixed base on the panel, Next, use a coin to rotate the matching button slot to the horizontal position and press it vertically in the same direction as the anti lock button, Finally, rotate the "master adjustment wheel" at the rear of the latch to keep the latch level with the anti-theft door. Close!

In order to adapt to the different rotation angles of the anti lock buttons of different locks, the smart door latch can rotate for a maximum of two and a half turns, and will stop rotating and automatically memorize when encountering resistance.

During the test, it was found that the switch lock direction of the smart door latch is opposite to the door lock of my home. It doesn't matter. Open the battery back cover, pull the direction switch in the middle, pull out the battery and restart it to correct it.

There are three ways to switch and lock the smart door latch, namely, the round rotary button, the snail key and the mobile phone APP. Let's test them one by one.

Turning the button to open and close the lock is the quickest and most convenient, but it can only be operated indoors. The time from the key to the door lock switch is about 3 seconds. The key has a strong sense of damping and feels good when pressed. The green light flashes when unlocking, and the blue light flashes when locking, accompanied by voice prompts.

The snail key switch is also very convenient. It takes about 4 seconds from the key to the door lock switch. When there is no shelter indoors, the farthest remote control distance of the key is about 7 meters, but even if the distance is about one meter, it cannot go through the wall to complete the opening and closing of the lock; When operating outside the door, the command of opening and closing the lock cannot be completed beyond one meter, and the operation can only be completed within one meter from the anti-theft door. It can be seen that the Bluetooth of the snail key is weak in penetrating walls and doors, but it is enough for normal switching applications. It is worth mentioning that when the mobile phone is connected to the latch, the key fails, which may be the reason for the one-to-one Bluetooth connection.

Finally, we tested that the door latch was opened and closed through the mobile phone APP, and the operation of opening and closing was completed without pressure in any corner of the 130 square house, and the time was about 4 seconds. However, it still takes about 10 seconds to open the APP and connect the smart latch via Bluetooth. Sometimes, the connection fails, and you need to try again. When the automatic locking option is turned on in the settings, the door latch will automatically lock when the phone is disconnected from the latch.

The most important concern of all the attendants must be whether the smart door latch can not be opened when there is no power. In that case, the 100% anti lock technology will really prevent you from being outside the door. Let's test with four batteries that are running out of power. Just install these four batteries and you will be prompted that the battery is low. Please replace the battery, but you can also switch. After each switch operation, you will be prompted that the battery is low. When the battery power is really about the same, the door latch will automatically open. It seems that the situation that we are worried about shutting us out when the battery is dead will not exist.

Summary

Snail Housekeeper Smart Door Latch is very simple and clear both in principle design and in installation and use. Focusing on user experience everywhere, it turns an ordinary door lock into a smart door latch, and achieves a real 100% anti lock technology, so that families no longer worry about "locking". It can be said to be a great innovation in the era of smart home. However, there are also some shortcomings:

1、 The overall size of the product is still slightly larger, and the battery occupies most of the size and weight of the product. Polymer lithium battery can be considered to save product space and be economical and environmentally friendly.

2、 The quality of the snail key needs to be improved. I sent two keys and found that one of them was broken. Fortunately, I contacted the official staff and reissued another one; The charging interface of the snail key does not have any protection measures, so if it is often hung with the key, the charging interface may be damaged.

3、 The workmanship of the product needs to be more refined. The gap between the upper cover and the base of the latch is somewhat large. In addition, the latch still shakes after being fixed to the door lock, which is not very secure.

Suggestion:

1、 It is recommended to open the remote switch lock option for users to choose, so that even if the elderly at home forget to bring the snail key or the key is out of power, they can also help to open the latch remotely.

2、 It is recommended to add the latch battery power display and low power reminder at the APP end of the mobile phone, with more reminders and more security guarantees.

Finally, the team of snail housekeepers should be praised manually. They have set up a special QQ communication group to listen to the opinions and suggestions of trial users. They can communicate with users anytime and anywhere to answer questions. Even during the Spring Festival, special personnel are also assigned to be on duty. No matter when, users' questions can always be answered within ten minutes. I reported that the key was broken in the group and received a new key the third day. I think that the first element of emerging products in the era of smart home is not how fancy and technical they are, but how they can really bend down to listen to users' needs, understand users' experience, and be a product that users can buy with confidence, use with comfort, and provide warm services. Thanks to Lei Feng and Snail Steward for offering this trial!