Experience Lecheng K5 smart fingerprint lock: active defense makes your home safer

IT168 Review Smart door locks have become very popular recently, and I, who like to try new technologies, are naturally very excited. However, my wife was reluctant at first. Firstly, she was heartbroken about the door lock that she bought at a high price. Secondly, she was worried about the safety of the smart lock. For this reason, I did a lot of ideological work, and after some hard talk, my wife finally agreed to change the lock on the armored door.

Because this was my first time using a smart lock, I chose the “high-end and classy” option, and the final target was the Lecheng K5. Different from ordinary smart fingerprint locks, Lecheng K5 is a smart fingerprint lock with a camera and cloud functions. Based on these two characteristics, Lecheng K5 can provide active defense protection instead of the passive defense of traditional door locks. In addition, the current fingerprint lock market is mixed with good and bad. As a brand of Dahua, the global security monitoring industry giant, Lecheng is naturally a more reliable choice.

In terms of appearance design, Lecheng K5 adopts a combination of brushed aluminum alloy + mirror elements, integrating a sense of technology with an atmospheric style. The wide-angle camera on the top is very eye-catching, with a visual field of view of 140°. Lecheng K5*** supports 5 unlocking methods, including APP remote, password, IC card, and biosemiconductor fingerprint recognition.

Next to the camera are microphones and sensors. Generally, smart locks can only listen to sounds for remote unlocking, while Lecheng K5 can confirm objects through video images. The use of sensors adds stranger loitering detection. This function will be discussed in detail later.

The fingerprint recognition of the Lecheng K5 is set below and mounted upside down. Although it is not convenient to place it on the door handle, it adds an extra layer of protection. Avoid damage caused by naughty neighbors, dust, etc.

Official information shows that Lecheng K5 uses the Swedish FPC fingerprint chip, with a recognition speed of 0.5 seconds. In addition to being fast, biometric fingerprint recognition also has the advantage of distinguishing fake fingerprints, as you will know if you have used fingerprint recognition on smartphones.

The camera can be charged directly or with a power bank through an additional built-in 3900mAh battery.

SUS304 stainless steel lock body, super-B grade lock cylinder, reliable. Here is a little popular science. The industry divides lock cylinders into Class A, Class B, and Super Class B (Class C). The principle of grading is that the further back the lock is, the longer it will take professionals to open the lock and the safer it will be.

Lecheng K5 uses a B+ grade lock cylinder and provides 3 spare keys and two induction door cards. Okay, let’s start the installation. After all, the actual experience is the core part.

Lecheng provides free on-site installation services and free on-site maintenance services within three years. According to official information, Lecheng's installation team is a professional team built by the brand itself, which is different from those unprofessional teams on the market that are hired by third parties (most of them are not installed well). The installation process is quite professional, so I can only watch onlookers. Because the armored door at home is not a standard size, it was also a hard work for the installation master.

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After installing the battery, you need to set the administrator's password information first and connect to the Lecheng APP on the mobile phone through WIFI. Note here that the routing should not be too far away from the door lock. Because weak WIFI signal not only increases power consumption, but also affects transmission speed. For example, my home has a router next to the gate, so the connection effect is quite good.

Lecheng K5 smart lock is equipped with a hidden LED touch keyboard, and a more secure virtual password is used to enter the password. The password can be up to 12 digits long. When entering the password, as long as the order of the actual password is correct, other numbers can be entered out of sequence in the middle or before and after to prevent prying eyes (you will not be able to remember the password after reading it).

Fingerprint recognition is very fast, and the speaker will have corresponding voice prompts. This is also the most convenient core experience of smart fingerprint locks. Say goodbye to troubles such as forgetting to bring keys or missing keys.

Different from ordinary fingerprint locks, Lecheng K5 smart lock has a 140° ultra-wide camera, which significantly improves security in actual experience. First of all, no matter how far away people are through the Lecheng APP, they can observe the situation outside the door in real time, which is equivalent to an additional monitoring device. The 1080P resolution also looks very clear, and with the night vision function, it can achieve all-weather door detection.

But we don’t need to stare at the camera 24 hours a day, because Lecheng K5 has a wandering alarm function.

The time I set here is 30 seconds. As long as you stay in front of the camera for more than 30 seconds, the mobile phone will receive a push. At this time, we immediately turn on the camera and can see what is happening outside the door.

When recording the unlocking video, the wandering alarm function recorded me. You may ask, what if someone is detected wandering. In fact, it is very helpful. Not only can we use the camera to determine who is outside the door, but if there is a stranger we do not know, we can also turn on the walkie-talkie to intimidate them, so that the criminals will retreat. Lecheng K5 also supports cloud storage services, which will automatically capture and record videos and save them to the cloud, which can be used as image evidence in the event of an accident.

Lecheng K5 can save up to 100 sets of fingerprints, and can set names for the fingerprints, so that you can more conveniently view daily entry and exit records. In addition, you can set fingerprints with different permissions for different time periods, such as setting the fingerprint of a nanny who can only enter the door during the morning period.

In terms of battery life, Lecheng K5 is driven by four AA batteries. Because the camera and smart lock system are powered independently, these 4 batteries can provide long-lasting use. According to official data, it switches on and off 10 times a day, and the power can last for about 1 year (standard battery). In my actual measurement, after 16 days of use, the power consumption was about 6% (the power consumed during installation and debugging was not included).

Comments

There is no doubt that Lecheng K5 smart lock brings a new entry and exit experience, that is, convenience. In the past, I carried a bunch of keys with me and had to find the keys to mechanically unlock them when I went home. Now you just need to close the door and bring the community access card, because Lecheng K5 also supports the entry of the community access card, and the community access card can also be unlocked after success. Especially for families like us who travel with children, it is very convenient not to have to dig out the keys.

Relying on smart video hardware and cloud services, the security experience brought by Lecheng K5 smart lock is more realistic than simple mechanical locks or fingerprint locks. Compared with the latter's passive defense, it provides users with active intelligent defense strategies. Naturally, this also benefits from Lecheng’s years of accumulated experience in smart security products. If you want to try a more convenient way to enter and exit while enhancing the security of your home, Lecheng K5 smart lock is undoubtedly a good choice.