Which smart lock is good? - Smart locks
As the patron saint of every family's safety, locks are essential products for families. And the public's need for smart locks is no longer a simple guardianship. The requirements for locks are also getting higher and higher. From the initial Luban locks to modern mechanical locks, it has been the era of smart locks for electronic locks. Smart lock is different from ordinary locks, it has safety, fast, convenient, intelligent and other functions! Then the question is, what kind of smart lock is better? The following Xiaobian teach you some of the purchase tips! 1. To select a lock that can be used by many people to open the fingerprint (except single dogs), the product quality must be stable and the performance is good. 2. Can open the door with permission (it is impossible for the head of the household to have the same open management rights as the nanny and the cleaning tool). 3. You can freely increase or decrease the fingerprint of opening the door (since the nanny leaves the service can easily remove her fingerprints). 4. It is a good idea to have a query recording function (you can view the door record at any time, and sometimes it can become a key piece of evidence, usually with a display screen). 5. With appropriate password function (fingerprint part is, after all, the electronic part may be bad, in case of temporary users can open the door with a password), but in daily life, do not use the password to open the door as much as possible, can effectively avoid being stolen. 6. Be sure to have a mechanical key. This is an alternate way to open the door. Because any electronic part has the possibility of making mistakes, the mechanical part is relatively more stable, and the mechanical key of the lock is reserved as a standby door-opening method in the home. It can open the door and facilitate the maintenance promptly when the electronic part of the door lock is out of order. 7. Be sure to choose a good lock cylinder. The quality of the mechanical key cylinder is directly related to the security and stability of your door. This part is also very important, fingerprint lock no matter how good, in the end can not be separated from the cylinder. 8 other fancy features is best not to!!! Basically not practical, more than one function is more of a bad possibility, after the product is broken, you repair is not repair, repair, maintenance personnel will charge you for maintenance ( The door is not free.) 1, the operation is simple and easy to understand. The home smart door lock has an automatic electronic sensor lock system. When the door is automatically closed and the door is closed, the system will be automatically locked. The user can unlock the door lock through the fingerprint, touch screen, or card. Moreover, in general, the smart lock also has a voice prompt function, which allows the user to operate more easily and understandably. 2, to protect privacy and security. Home smart door locks have a virtual password function technology to protect privacy and security. The virtual bit password function means that any number can be entered before or after the registered password. In this way, the registration password can be effectively prevented from leaking, and at the same time, the door lock can be unlocked, thereby bringing a safer use environment for the family. 3, to achieve remote opening. The home smart door lock has built-in embedded processor and intelligent monitoring equipment. The owner can remotely control the smart lock to open the door for visiting guests. Let the user decide who will enter the door and open the door remotely. This scenario is not uncommon: Relatives and friends visit but they are not at home. Our usual choice is to have them wait near their home or leave the keys to their neighbors. With smart locks, we can open doors directly to them remotely. 4, independent information management The home smart door lock manages all user information and is free to add/modify/delete user information. This function is very useful for user management of user rights. Users can freely authorize and allow or prevent certain people from entering. For example, when nannies or tenants move away, their fingerprints can be immediately deleted so that they cannot open the door without the right to use it. On the contrary, if there are new nannies and tenants, they can register their fingerprints at any time so that they can freely open the door. I believe that everyone has read this article has been how to buy smart locks have some understanding, Xiaobian here suggested that there are many manufacturers of smart locks, must be optimistic about the brand, the product is doing a good job in contrast to choose. Xiaobian recommend a website: smart lock network: http://zns.znjj.tv/ I hope to help you!
Advanced Plastic is a polymer material which has a higher comprehensive performance and can be use in long-term temperature above 150 ℃.It is mainly used in the field of high technology .So we also call it as the high performance engineering plastics or heat resistant engineering plastics.
This kind of material has excellent characteristics of light weight, high strength , good heat resistance and others and its application is from the original national defense and aerospace to the field of car, equipment, high-end consumer goods and many civilian areas.
There are many kinds of Advanced Plastic produced by Dongguan Noegem Plastic Product Co.,Ltd .
1. Production:
Polyphenylene sulfide plastic sheet (PPS plastic sheet),
PPS plastic which also called Polyphenylene sulfide.On the primary key is extremely dense and sulfur atoms of benzene ring, thermoplastic resin is high rigidity, high crystallinity, have higher strength and modulus, products can be used in the 200 ~ 224 ℃, 250 ℃ under the main performance.
2. Production:
Polyether imide plastic sheet (PEI plastic sheet),
Antistatic polyether imide plastic sheet (ESD PEI plastic sheet),
Conductive polyether imide plastic sheet (CON PEI plastic sheet),
Polyether imide plastic rod (PEI plastic rod),
Antistatic polyether imide plastic rod(ESD PEI plastic rod),
Conductive polyether imide plastic rod (CON PEI plastic rod),
PEI plastic is characterized by high intensity, high rigidity, abrasion resistance and dimension stability.PEI plastic is a transparent solid of amber, which has inherent flame retardancy and low smoke intensity without adding any additives. The oxygen index is 47% and the combustion level is ul94-v-0.
PEI plastic is 1.28 ~ 1.42 g/cm3 density, glass transition temperature is 215 ℃, thermal deformation temperature of 198 ~ 208 ℃, can use for a long time under 160 ~ 180 ℃, allows intermittent maximum temperature of 200 ℃
PEI plastic has excellent mechanical strength, electric insulation, radiation resistance, high and low temperature resistance and fatigue resistance and molding processability;The addition of Glass Fiber, carbon fiber or other filler can enhance the modification purpose.
3. Production:
Polyether ether ketone plastic sheet (PEEK plastic sheet),
Antistatic polyether ether ketone plastic sheet (ESD PEEK plastic sheet),
Conductive polyether ether ketone plastic sheet (CON PEEK plastic sheet),
Polyether ether ketone plastic rod(PEEK plastic rod),
Antistatic polyether ether ketone plastic rod(ESD PEEK plastic rod),
Conductive polyether ether ketone plastic rod (CON PEEK plastic rod),
Polyetheretherketone (PEEK) plastic is a kind of excellent performance of special engineering plastics, has more significant advantages compared with other special engineering plastics..Can be used for high-end technology such as mechanical, nuclear engineering and aviation.
Advantage :
1)Excellent chemical resistance and hydrolysis resistance
2)Excellent physical and mechanical properties
3)Resistance to high temperature is 260 degrees,
4) light and good dimensional stability
5 )excellent flame retardancy
6)Good electrical insulation and electrical stability
7 )it can be mixed, easy to process composite
8)Good self-lubrication
4. Production:
polyphenyl ether plastic sheet(PPO plastic sheet ).
PPO plastic is a special kind of Engineering Plastic, which has many features that other engineering plastics do not have:
1. Transparency: PPO plastic is one of the few transparent plastics;
2. Non-toxic: PPO plastic itself is less toxic and more suitable for food and medical applications;
3. Low temperature resistance: the low temperature of the PPO in the low temperature of minus 170 degrees centigrade, which is a lot of engineering plastic;
4. Low gravity: 1.08 g/cubic cm is slightly more dense than water;
Main features of Advanced Plastic
Heat temperature of 150 ~ 300 ℃
Advantages :
1).Good in heat resistance,
2).Good chemical resistance and radiation performance,
3).Good flame retardancy
4).Good stiffness, strength, toughness, creep, abrasion and other comprehensive mechanical properties.
Application: space aviation, defense military industry, nuclear power, electronics, transportation, machinery manufacturing, medical devices and other civil fields.
Advanced Plastics (160-220℃) Advanced Plastic,Advanced Technology Plastic,Excellent Quality Advanced Plastic Dongguan Noegem Plastic Products Co.,Ltd , http://www.noegempLastic.com
Which smart locks are good - smart locks
Which smart lock is good - function article