The price, most people will be moved, but think about it carefully, only a C-class lock core is close to 300 yuan, is the smart lock with a thousand yuan class really safe? I almost started the fingerprint lock of about 1,000 yuan. Fortunately, the incident that the "Tesla Coil" black box was unlocked for 3 seconds some time ago was a blow to me. Later, when I chose the fingerprint lock, I was more cautious. After comparing the security and convenience of the lock for a long time, I finally chose the spotted cat W500 fingerprint lock for the Internet of Things.

　　At that time, when I chose this lock, I paid attention to both safety and convenience. According to relevant national regulations, smart locks must have mechanical keys to meet emergency needs. Therefore, one of the weaknesses of smart locks is still the mechanical lock core. Many smart locks on the market, especially some cheap smart locks, still stay in the B-class lock core, and this one uses the C-class lock core; On the other hand, this smart lock can resist the "Tesla coil" black box, and it is also safer in the electronic part.

　　Convenience mainly considers that the lock can be unlocked in a variety of ways. For example, the daughter-in-law has a shallow fingerprint, and can use the mobile phone Bluetooth to unlock and password to unlock; Parents are older, come here once in a while, can’t remember the password, can’t use the smart phone, and can use the physical magnetic card to unlock it; When there is no one at home, if there is a courier, you can remotely open the lock for the courier through the APP. After careful calculation, all kinds of usage scenarios can be taken care of, which is really convenient.

　　The packaging of the spotted cat W500 IoT fingerprint lock is as shown above. Although the design is relatively simple, it is very heavy and the weight is particularly sufficient. After opening the package, there are warranty cards, installation instructions and instructions for use. The door lock panel is red bronze, which looks higher than black and silver, and this color scheme matches the security door at home.

　　After receiving the lock, I immediately contacted the after-sales service to install it. The installation was free. At about 2 pm, before the installation master came to the door, I opened the package and took a closer look. There are many accessories for the fingerprint lock of the Internet of Things. The screws of different models are individually packaged, the guide vane is made of alloy steel, and the inner and outer panels also have protective gaskets.

　　The smart lock also comes standard with two emergency mechanical keys and two magnetic key. The magnetic key should be an NFC chip. I wanted to copy the magnetic key to the mobile phone, but I couldn’t recognize it after trying it with Huawei and Apple. It is estimated that the non-standard frequency is used or other encryption technologies are adopted. The advantage is that the risk that the magnetic disk is easily copied is eliminated.

　　The bottom of the outer panel is a mechanical keyhole and a USB power supply interface, which are all designed in an integrated way, with high security and will not be easily tilted open. When the battery of the smart lock is low, if the mechanical key is not at hand, you can use the mobile power supply to power the lock through the USB interface.

　　Both the outer panel and the inner panel support the function of adjusting the handle left and right. The direction of the lock handle can be adjusted through the small hole on the right side, and both the left door and the right door can be adjusted and adapted.

　　The panel of the lock is very heavy and the materials are very thick. The surface of the panel is made of IMD technology, which has good color and luminosity, and has good dust-proof, moisture-proof and scratch-proof effects, so there is no need to worry about scratching the panel in a short time. When the panel is installed, there is a cushion, which can make the panel of the door lock fit the door better and prevent the panel from scratching the surface of the door.

　　My parents’ smart lock has to slide every time they need to use fingerprints, which makes it more troublesome to use. Spotted cat is designed with fingerprint and handle integrated, which is very convenient, and you don’t need to press your fingerprint when you open the door.

　　The upper part of the panel is a password input area and a magnetic disk induction area. The appearance of the inner panel of the door is consistent with that of the outer panel. The slight difference is that the password area on the upper part becomes a battery compartment, and the spotted cat LOGO on the lower part becomes an anti-lock mechanism.

　　Spotted Cat, an Internet of Things fingerprint lock, is powered by 8 batteries, and batteries are provided in the accessories. According to the official propaganda, the battery life is 180 days, and the battery can be changed once a year. When the battery power is lower than 20%, the smart lock will actively remind the user to replace it in time through the APP and the lock body.

　　Spotted cat’s lock body is made of very thick material, and only the lock body part weighs 1KG. The lock body supports the heaven and earth hook of the security door, so you can pay attention to it when installing.

　　The lock tongue can also be adjusted by 180 degrees, which is also suitable for opening the door left and right. The lock tongue has a hook design, which can prevent the card from unlocking, and the safety has been further improved. After the installation, at my request, the master specially took out the "Tesla Coil" small black box to help me verify the safety on the spot. This lock withstood the electromagnetic interference of the small black box with 360 degrees and no dead angle, and the electronic safety was also relieved.

　　After the installation, the effect looks beautiful. The red bronze color scheme matches the security door, and it looks more upscale.

　　When unlocking from the outside, just put your finger on your fingerprint, and the reaction time is about 1 second. After a drop, a real voice reminds you that the door lock has been opened. The unlocking process is relatively smooth and natural. Now it has been used for nearly three months, and it can be opened almost once whether it is dry or wet, and no adjustment is needed. By the way, fingerprints will become more sensitive as they are used for a long time, which is a self-learning mechanism for fingerprints.

　　In addition to the physical password, the door lock can also be unlocked by entering the password through Bluetooth +APP.

　　What if the elderly are forgetful, have shallow fingerprints and can’t use smart phones? Don’t worry, you can also use a floppy disk to unlock it. The floppy disk needs to be paired with the fingerprint lock once before it can be enabled.

　　The floppy disk is very small and can be easily put into the protective case of the mobile phone. We carry the mobile phone with us, so we don’t have to worry about forgetting to bring the floppy disk when we go out.

　　You can also easily open the door lock by putting the magnetic disk in the mobile phone case.

　　Let’s look at the effect inside the door. There is an anti-lock mechanism inside the door. The anti-lock is mainly to prevent the cat’s eye from unlocking. After the lock is locked, it is impossible to open the door outside unless it is manually released.

　　It is unnecessary to mention this originally, but after Redmi’s smart door lock is locked, unlocking outside the door can actually open the locking mechanism, which is rather embarrassing. Locking is originally to prevent unlocking from the outside. I wonder what the significance of Mijia’s doing so is? From this point of view, the safety factor of spotted cats is higher.

　　The design of the spotted cat’s APP also takes into account safety and convenience. Every time you enter the APP, you need to verify it to prevent criminals from illegally operating or misusing it when you use it yourself. When logging in, you can choose to use the fingerprint already entered in your mobile phone instead of entering the password, which is really convenient.

　　Users of smart locks can be managed in the APP, and different users can be assigned different permissions and unlocking methods. In addition to simple fingerprints, passwords and magnetic cards, the unlocking methods can also be set as mixed authentication methods, so it is necessary to pass both methods at the same time before opening the door. For example, if you set the unlocking method for your parents as floppy disk+password, if others find the floppy disk and hit it, they won’t open the door, because they can’t guess the password, and the security is further improved.

　　The smart lock will automatically record and remind you to unlock. In addition to prompting in the APP, users can also bind WeChat to remind them through WeChat. Then, I mentioned the coercion password earlier. If the family is threatened, you can unlock it with the preset coercion password. At the same time, the APP will remind the family and the mobile phone will receive a SMS reminder. In case the door lock is damaged, the lock will sound an alarm, and the APP and the registered mobile phone number will also receive a reminder push.

　　Spotted Cat APP can actually manage all its smart devices, such as fingerprint locks, cameras, cat eyes, gateways, door and window sensors, human body sensors, curtains, sockets, switches, etc., and these devices can also be set in linkage. After linkage, a relatively complete smart home system can be built. For a simple example, I set the cat’s eye to take a photo when my wife and I unlock the lock, and the camera in the living room will turn off the video mode. If the lock is unlocked at night, the intelligent switch will also turn on the lights in the living room and the book bathroom. This is just a very simple example, and you can also customize the scene according to your actual needs.

　　By the way, at present, the smart devices of Spotted Cat also support voice control through Tmall Elf and Baidu speakers. If there are smart speakers at home, it will be more convenient to use.

　　Finally, it summarizes the fingerprint lock of Spotted Cat W500 Internet of Things from three aspects. The first priority must be safety. The spotted cat lock has many designs in terms of safety, such as thick lock body materials, C-class lock core, anti-pry alarm, coercion alarm, anti-lock and cat’s eye unlocking, and combination of the two methods.

　　The second aspect is convenience. The combination of door handle and fingerprint makes it more convenient to unlock. Six unlocking methods meet the needs of different scenes of many members in the family, especially the addition of magnetic card unlocking method, which is convenient for special users such as shallow fingerprints and the elderly.

　　The last point is the icing on the cake design. The appearance of the spotted cat W500 IoT fingerprint lock is really classy.