Fire Safety Encyclopedia

The best door lock. Technical characteristics of the most reliable lock for a metal door. Abloy Oy, Finland

No reliable locking devices. Usually they put at least two locks, sometimes three or four. They make reliable door constructions, regardless of how and with what the canvas and the box are reinforced. When choosing a metal door, give preference to models that are equipped with locks with different mechanisms and are able to provide your home with maximum protection from intruders.

Crossbar - main shut-off element

The main obstacle that prevents the burglar from entering through the doors into the house is the crossbar that is pushed out of the castle and enters door frame... Being a rod with teeth and grooves, it blocks the spring when the "non-native" key is inserted and does not allow the locking mechanism to open. In high-quality structures, the girder is made of high strength steel, has a cylindrical shape and is able to rotate freely around the axis.

Which lock is better?

Suvald castle

It is considered the most reliable and burglar-proof device. Invented back in the 19th century, it has enjoyed unchanging popularity among the population of the whole world for several centuries. The lock mechanism is difficult to open due to a unique set of levers or plates (no more than 6), on which there are cut teeth different sizes... If you lose the key, you can easily recode it without disassembling the case. The lever lock is vandal-resistant and continues to function normally even if small objects enter the keyhole. Modern suction devices are equipped with effective protection against burglary: false grooves, buffer mechanisms for recognizing master keys, armored plates, therefore, they are opened only by forceful methods.

Pros:

  • durable and shock-resistant housing;
  • high burglar resistance;
  • ease of repair and replacement of the mechanism.

Minuses:

  • great weight.
  • dimensional wrench;
  • the presence of a cross-cutting keyhole freezing in cold weather.

Important:

When choosing a lever lock, pay attention to the transom shank post. Between it and the groove of the levers, a gap should form within 0.3-0.7 mm. A lower value will lead to frequent jamming of the bolt, the application of more force when turning the key and its rapid wear, especially with frequent closing and opening of doors. Too large a gap reduces the burglary resistance of the lock and increases the likelihood of opening the door with a special master key.

English (cylinder) lock

The design of the cylinder lock, equipped with a cylindrical coded or secret mechanism, is a universal option for entrance doors. Due to its small size and cut-in opening, it does not spoil the aesthetics of the entrance doors at all. In addition to the cylinder (larva), the device has a housing, code elements and a bolt drive that actuates the mechanism for closing or opening doors. The device is supplied with a flat steel or brass key, equipped with 1-4 rows with notches and teeth at the edges. Created Various types cylinders: cruciform, swivel, pin (single-row, double-row), with conical milling at the end.

Pros:

  • compact size;
  • high reliability;
  • small key;
  • maintainability - the cylinder changes, and not the entire lock;
  • high secrecy (billions of combinations for expensive models).

Minuses:

  • weak protection against force hacking;
  • the hole is easy to clog with a match;
  • the cost of installing an armored lining;
  • the larva is unstable to concentrated acids.

Important:

Reliable protection of the apartment is provided by a cylinder lock with a hole cylinder, five or more "pins" - spring-loaded balls and pins, which are combined with the key barbs, smooth drive and armor protection from knocking out the larva. Its reliability is significantly increased by multi-row keys with perforation at the end. It is almost impossible to open such a lock with master keys, only with a bumping.

Disc lock

The device belongs to pin cylinder locks and is highly reliable. It does not use the selection of pins in height, but the alignment of the disks at a certain angle. The key is a metal rod with a semicircular section and transverse cuts. In most cases, models are equipped with an automatic or semi-automatic (push-button) latch. They are more suitable for doors public buildings, the locking devices of which are experiencing increased stress.

Pros:

  • does not freeze;
  • high service life;
  • opens when debris gets in.

Minuses:

  • the larva protrudes beyond door leaf;
  • automatic slamming function in the absence of a key;
  • the cylinder is drilled out and knocked out.

Important:

The disk lock is often opened by drilling, so it is better to choose designs with carbide protective inserts.

Cruciform lock

A distinctive feature of the device is a larva and a key, which are cruciform from the end. The mechanism consists of four rows of pins and is distinguished by good secrecy - about 20,000 combinations, but it does not possess great reliability and is easily drilled out or opened with the help of master keys.

Pros:

  • profitability;
  • corrosion resistance;
  • ease of use;
  • in case of a breakdown, it is enough to change the cylinder.

Minuses:

  • low burglar resistance;
  • low degree of secrecy;
  • low quality;
  • wears out quickly on all four sides.

Important:

Cross-core locks are often made from an unreliable material, due to which they quickly wear out and break. When buying it, it is better to choose models made of armored steel. In the attached documents, it is referred to as C85.

Top five door lock manufacturers

"Mettem"

The company began its activity in 1992 and today its products are in demand both in Russia and abroad. The main specialization of the plant is the production of suval, cylinder and combined locks of increased strength and 4 safety classes. A special group is made up of radio-controlled locking devices for doors industrial premises and apartment buildings made of durable steel and equipped with a ten-button code dialing mechanism. Models are equipped with 4-10 levers, some of them are equipped with an additional code mechanism for locking the bolts.

"Kerberos"

The Finnish company "Dafor OY" in 2008 established in St. Petersburg the production of lever locks of the 4th class of burglary resistance, which are considered one of the most reliable locking structures on the domestic market. Tests have shown that the devices resist hacking for 30 minutes, thanks to effective protection: false grooves, variable cutting pitch, special locking device from drilling - a floating ball that is placed on the end of the shank and rotates with the drill. The secrecy of some models exceeds five million combinations.

"Border"

The Ryazan plant, founded in 1942, produces lever locks, electronic locks and with release grooves. Burglar-resistant mechanical models of 3 and 4 security classes are especially popular, equipped with chrome strikers, armor plates, deviators to increase the level of secrecy. The Resistance series locks are equipped with a unique patented system with reinforced bolt pins that reliably protect the door from burglary. Electromotor locks from the Electronics collection are opened using proxy cards and are designed to protect banks and plastic doors hotels.

"Cerberus"

Since 1994 JSC "CERBER" has been manufacturing mortise and surface-mounted type 3-4 safety leveled locks in St. Petersburg. Their production is based on our own patented K-SYSTEM technique, which provides a closed interaction between the lever and the key, due to which the locking mechanism continues to work even in the event of an unforeseen breakdown or corrosion of the stopper. All models meet international requirements and are equipped with a bearing roller, a lock stand, and a special anti-drilling insert against unauthorized opening.

« Guardian»

For more than 15 years, the Guardian company has been supplying to the Russian and foreign markets with lever, cylindrical and combined locks, which are in no way inferior to their European counterparts. Today the line includes over 40 models with thickened armor plates and modern mechanisms 2-4 classes of burglary resistance. They are equipped with both wooden and steel doors presented. Models with replaceable rotors are available, which allow, in case of a key loss, not to completely change the lock, but only to recode the larva. The manufacturer provides a 5-year warranty for all products.

Intelligent locks

Today, many leading Russian and European brands produce limited editions of biometric locks that scan the owner's fingerprint and open when the scanner is pressed. For example, the Guardian company, which has set up the production of doors with an ekey scanner, thanks to which a fingerprint is taken even from dirty fingers, without the use of computer and additional devices. Their convenience is captivating - no need to carry the key with you and worry that it might get lost. At the same time, the locks recognize the prints of both adults and children, starting from the age of 6, and tolerate temperature extremes from -40 to +85 degrees.

With the increase in human well-being, the requirements for the safety of housing also grow, where special attention deserves entrance doors presented today in a wide variety. However, no matter how powerful the door is, the main thing is to choose the right lock, the quality of which ultimately determines security. Locks come in a wide variety of types, they have different degrees of protection, including non-standard models, controlled by electronic means - a real problem for home thieves. Finding a suitable lock is difficult, and it depends on many factors, including the type and material from which the door is made. The rating of door locks of 2016, based on the technical characteristics of the products and according to customer reviews, will help to facilitate the choice.

Top 5 best locks for metal entrance doors

When choosing a lock for an entrance door, it should be remembered that the lock is not always suitable for wooden door can come up to metal door... It is also important to know that locks have three main types, and this is not counting the most modern locks with a special design. The most common is a lever lock, which has a special fixing part (leverage) that fixes the lock in the closed position, and the more there are, the stronger the lock. Cylindrical locks are often used with a built-in inner part cylindrical... The locking mechanism consists of several levers made of durable alloys. A special place is occupied by recoded locks, which are a modified version of lever and cylinder locks. We offer a rating of the reliability of locks, which includes the best-selling models:


Today, many owners of apartments and private houses, worried about their own safety, put metal or armored doors. But the fact is that the protection of housing depends not only on the installed door leaf, but also on the chosen locking device. If the lock was chosen incorrectly or turned out to be of inadequate quality, the resistance to breaking such a door instantly drops. Therefore, it is very important to understand the mechanism of operation of the locking devices and make the right choice.

When choosing locks for metal entrance doors, it is necessary to take into account the parameters that relate, first of all, to the device and protective properties these locking mechanisms.

Door locks are distinguished by:

  • Appearance;
  • The mechanism of work;
  • Installation method;
  • Reliability class.

Externally, locks can look completely different - this concerns both their size and the level of visibility. For example, there are special hidden keys that are not visible to prying eyes.

As for the mechanism of operation, on this basis, locking devices are divided into:

  1. Crossbar locks - in order to unlock such a device, the key should not be turned, but inserted into the keyhole until it stops. Keys for such locks are made long, with special teeth and slots.
  2. Cylinder locks are the most common locks. They need small keys, and the fact that such a mechanism is almost impossible to break with a master key gives them an additional advantage.
  3. Lever - represent a plate from which the a certain amount of constipation. The more such bolts a lock has, the more reliable it is.
  4. Electronic (electromagnetic) - as a rule, they open with a certain combination of numbers or magnetic key... Such a castle has automatic principle work, which allows him to close the doors on the machine. Its disadvantage lies in the direct dependence on the supply of electricity.

According to the method of installing locking devices, the qualities of mortise locks proved to be the best. Their hidden parts located inside the mechanism serve as an excellent barrier to the actions of an intruder. Overhead locking devices are used less often for metal doors, as they are not as reliable. They are mainly used to lock interior doors.

There is a classification of locks according to their reliability. There are four classes:

  • The first and second grades are not suitable for iron doors as they are very simple and easy to hack.
  • The third class is distinguished by increased burglary resistance, and to open it, it will take at least 10-20 minutes.
  • The fourth grade is the best, and in order to break open such a door, you will have to suffer for about half an hour or more.

When it becomes necessary to choose a lock for an entrance door, you must first of all look at its resistance to burglary and reliability. Ideal option it is considered when two types of different locking mechanisms are installed on the door: one main and one additional.

High-quality front door lock cylinder and criteria for its selection

The lock cylinder is a special code part of the lock mechanism, which is "responsible" for the secrecy of this structure and moves the bolts. In common parlance, it can be known as a "larva".

In order to choose the right cylinder, you need to know its basic parameters:

  1. Length - it must necessarily match the thickness of the doorway and the lock.
  2. Displacement - The cylinder is usually separated by a swinging pendulum, which is displaced to one side, splitting the device in two. It is necessary to choose such an offset that would fit the lock.

When choosing a cylinder, it is important to consider one point: the structure should not protrude beyond the plane of the door. The maximum protrusion of the larva can be equal to 3 mm, not more. Otherwise this visible part attackers will calmly take advantage of it.

The main obstacle to burglary is considered to be the secret parts of the locking mechanism, so you do not need to save on what ensures the safety of your apartment.

The main methods of picking a lock, and what precautions should be taken:

  1. Lock pick - tricky false grooves will help here, significantly slowing down the key selection process.
  2. Drilling or knocking out - buying a cylinder made of a metal that cannot be drilled and is resistant to physical impact can help against this method.
  3. Bumping (a key inserted into the well is hammered) - and again here the strength of the cylinder itself and a non-standard, possibly hidden well, play a role.

As you can see, with the help of a correctly selected cylinder, you can maximally protect your apartment from the invasion of unauthorized persons and the commission of a crime.

To put really high-quality and reliable locks, one should not only study their types and equipment, but also heed the advice of the pros.

So, what should be considered when purchasing door locks:

  1. The thickness of the door leaf - if the door leaf is less than 4 mm, you should not buy a very heavy and large lock.
  2. Types of locks - it is best to make your choice in favor of cylinder and lever locking mechanisms, as they are characterized by increased burglary resistance.
  3. Manufacturer's warranty - when buying a lock, it is imperative to check the availability of a quality certificate, which should indicate the materials used in the manufacture and the class of reliability.
  4. Key appearance - in a good lock, the key has many teeth, grooves and grooves, therefore, a too simple appearance of the key may indicate a poor-quality mechanism.
  5. Lock body - the metal must be strong and thick, if the material is soft and brittle, then most likely this lock is for interior door, not for input.

If you want to put several locks on the door, then you do not need to buy them of the same type. Lever and cylinder locks or mechanical and electromagnetic locks are ideally combined with each other.

Understanding the principle of operation of locks, their types and characteristics, you can protect yourself and your home from unwanted guests and damage caused by them.

What are the best locks for metal entrance doors?

What kind of locks, based on their characteristics, can you choose in order to sleep peacefully after that? Each product category has a specific product rating. There is one of the firms involved in the production of locking devices.

  1. Class (Russia) - the company has been on the market since 1991 and has perfectly established itself as a manufacturer of locks with high level secrecy, quality and burglary resistance.
  2. Elbor (Russia) is one of the largest firms engaged in the production of locks. All products are highly secure and reliable. Basically, the production of locks of the second and fourth classes has been set up.
  3. ABUS (Germany) - produces high-quality German locks made of super-strong steel and additional protective elements... Such devices are practically unbreakable, they are very difficult to break, and the cylinder cannot be knocked out.
  4. Kale (Turkey) - has been making good locking mechanisms for over 50 years. Their products are renowned for their quality and high level of reliability.
  5. ATRA – DIERRE (Italy) - lever locks from the Atra Heavy series are especially popular with them. They are reliable and can combine a different number of crossbars.

If it is decided to install a cylinder lock on the door, then it is better to turn to French or Italian firms that produce locking mechanisms with a high level of protection against harsh burglary methods.

How to put the lock on the front door correctly

Before you buy a lock and invite a specialist to help you embed it, you can independently figure out all the intricacies of such an installation. With a little skill, you can do this in just a couple of hours.

Of the tools you will need:

  • Bulgarian;
  • hacksaw for metal;
  • drill;
  • screws, corners, ruler;
  • lock.

All work begins with the dismantling of the old locking mechanism, after which you can start installing a new one.

First you need to attach the lock to the door and transfer all its dimensions. This is best done with chalk or a special marker. Then you can start drilling the hole.

In this case, you need to know that the hole should be slightly larger than the lock itself. But the main thing here is not to overdo it, otherwise, over time, the screws may loosen, which will affect the operation of the device.

The holes for the crossbars must be made with particular precision and care. This is usually done with a drill and grinder.

When the lock is in the niche made, it is necessary to firmly fix it there on the slats and to the door with self-tapping screws. After that, you can install the top cover strip, hiding the lock from prying eyes.

After installing the lock, be sure to check its operation. The key must turn smoothly and easily and the door must be firmly closed.

Types of locks for entrance metal doors (video)

I would like to add that reliable high-quality locks for metal doors exist, although no one can give an absolute guarantee. Here you need to buy everything in the complex. TO good castle there must be a solid door. If it is flimsy and thin, then no amount of locking devices will save you. Contact only trusted manufacturers and listen to the advice of experts.

Nowadays, entrance doors are sold in the form of a basic (frame and door leaf) or a complete set, which also includes platbands, hinges, handles, locks, a peephole and a chain. The first option is usually cheaper and allows the owner of the house or apartment to choose independently the necessary accessories and accessories. But choosing a lock for the door is quite difficult: you need to correctly assess its material, design features and location, as well as weight, dimensions, design, secrecy and burglary resistance of the lock itself. Of course, professional advice sales consultants can always give. But, in order to understand some of the nuances when choosing a castle and understand technical parameters this difficult product, you must familiarize yourself with its features in advance.

Did you know?

The history of the castle can be seen as a centuries-old competition between inventors and burglars. For the first time, the simplest locks on doors appeared in China and Egypt. With their help, the rulers protected food supplies, treasures and their lives. Locking devices were made by joiners, and from hard wood. Metal locks in Europe have been known since Ancient Rome... A special contribution to the locking business was made by the Celts, who made the first all-metal locking devices - both overhead and removable. And the mass production of door locks began at the beginning of the 18th century.

The best of the best

The modern market offers hundreds of items different models locks, so it is very difficult to navigate the variety of these products.

Vendors usually categorize mechanical locks as "inexpensive but quite good," "expensive and very good," and "very expensive and super reliable." By the first, they mean most of the products of Turkish, Chinese and domestic production. Most of the Finnish, German, Italian and Israeli castles are often referred to the locks of the next price category. And, finally, the products of Austrian and British companies: they will cost the buyer no less than 10 thousand rubles. And if you add the cost of additional devices (armor plate, armor plate, magnetic protection, etc.), then the price can become even more impressive.

Location

Locks are hinged, mortise and overhead. With the help of the first they close utility rooms, sheds and garages. Mortise locks are protected by a door leaf in which they are attached. Overheads are installed with inside doors (wooden or metal). They are usually locked not only with a key, but also with a swivel pin or latch. In terms of burglary resistance, invoices and mortise locks are pretty similar. They are suitable for installation on both wooden and metal doors. The choice between them is determined by the technical characteristics and preferences of the buyer.

There is one peculiarity in the door - lock tandem: the design of the door leaf is able to protect the latter from certain types of burglary, but even the most powerful and ingenious lock is not able to "help" a flimsy door. Therefore, it is she who determines the appropriate type of lock. Although there are still a lot of wooden entrance doors in our country, reliable metal (most often economy-class) doors have now become the norm. As a result, it is the castles that are attacked in the first place.

Top secret!

All locks are classified according to the design of the locking mechanisms. Now the most popular of them are cylinder, lever and combined.

Cylinder

Photo: Shutterstock.com / Gavran333

The main part of such locks is a replaceable secret mechanism called a cylinder, or a larva. Inside it there are pins (pins), which, if they coincide with the key pattern, allow you to turn the movable part of the cylinder. Since these parts are quite miniature, when buying a lock it is worth asking what kind of metal they are made of. In "budget" models they are made of brass, in more expensive ones - from steel, which increases both the service life of the product and the resistance of the cylinder to drilling. To make it difficult to open the locks, some manufacturers reject balls and rods made of hard alloys into the body of the mechanism.

Special protection

Experienced locksmiths recommend installing cylinder locks complete with special protection- armored lining. It is in this version that the locks become reliable and practically indestructible.

Suvaldny

Photo: Shutterstock.com / gcpics

From an expert's point of view

A lever lock is considered to be more resistant to force than a cylinder lock. And if you strengthen the structure with an armor plate, then such a device is an excellent choice.

Such locks are also called safe locks. Their secrecy is ensured by metal plates with specially shaped slots, called suvalds. When turning the "native" key, they occupy a certain position, which allows the bolt (crossbar) to move. Otherwise, a special protrusion on its shank will abut against the edge of the slot and block movement.

When choosing a model of a locking device, pay attention to the keyhole and key. In a quality key, all the edges of the barbs are well polished, and the corners are straight. The impressive size of the keyhole can allow a thief to easily manipulate tools, so it should be narrow. Disadvantages of a lever lock - big size key and the need to lock the door with it both from the outside, leaving the house, and from the inside, returning, which is not always convenient.

Combined

Photo: Shutterstock.com / vetkit

In these locks, two mechanisms are enclosed in one case at once - a cylinder and a lever mechanism. This increases the reliability of the locking device: after all, the methods of opening such mechanisms are very different from each other, and thieves often specialize in only one type of locks. Combo models are usually expensive and laborious to install.

Reliable protection of their property is the primary responsibility of the owners. The right lock will provide maximum protection for your main door. The most reliable are locks with a lever secret mechanism. They support more than 100 thousand different combinations, often have false levers, and blocking systems in case of hacking attempts. All devices of this rating belong to the highest protection class, and therefore the scope of application is limited only by imagination and technical nuances. To find a really reliable "defender", a TOP 10 rating of door locks for entrance doors was compiled. The rating includes simple mechanical (keyed) and electromechanical mortise locks.

Elbor Sapphire 1.09.06

Elbor is a Russian manufacturer of anti-burglar door systems... Sapphire 1.09.06 - mortise lock with a lever secret mechanism. Burglary-resistant participant rating of locks reliability is suitable for installation in entrance doors, safes, garages, etc. The device can only be opened with a key on both sides. A special feature of this model is the increased protection of the girders from the gate valve into the well using pry bars, crowbars, etc. The device is made entirely of high-strength steel, resistant to drilling. The price of the unit ranges from $ 50-60.

KALE 352RL

High-quality door lock with lever type 4 security class. This model is equipped with 8 levers. The number of possible combinations is more than 200 thousand - this is one of the highest indicators in the rating. The entire system is made of high strength steel. Regil has 3 thick rods. Additional feature is a corner latch that closes from the inside of the door using a rotating head or doorknob, thus there is no need to constantly close the door with a key.

Guardian EMZ 1.02

The EMZ 1.02 model takes 8th place in the rating of door locks in terms of reliability and quality. EMZ 1.02 is a hidden type electromechanical door fuse. The lock is without a secret, the bolt is locked using an electromagnet motor. In the unlocked state, the latches of the device are operated using a conventional door handle (extend / slide). The device belongs to the 4th class of protection, and therefore has increased burglary resistance: press-resistant crossbars, the ability to install armored strips, protection against drilling.

Guardian 25.12 T

The device is designed to fit inside a wooden, iron entrance door. The features of the steel model: false grooves - provide additional burglary resistance; anti-drilling - the material of the body and the internal mechanism is treated with a special coating, resistant to metal drills; additional reducer - a gear wheel is installed in the mechanism of the device, which ensures ease of turning the key. The crossbar of the device has 5 thick steel bolts. The device can be locked from the inside by turning a button.

Mottura 30.401

Italian high-security cylinder apparatus of the 4th class (150 thousand combinations). Suitable for installation in wooden, armored doors for any purpose. Mottura 30.401 is a pump-type device, the mechanism is very similar to its lever counterpart, however, the keys can have many more "warts" in several independent rows of secrets. This model can be locked from the inside by turning the button, which prevents the possibility of opening from the outside, even with a key. In case of closing with a key, the mechanism can be opened from either side with the same key. The price of the device is approximately $ 70-80.

CISA 57.655

An expensive participant in the rating of secret type leveled locks. The five-toggle ledger is made of high-strength galvanized steel. A special feature of this model is the APLS anti-burglary protection patented by CISA: when trying to hack with master keys, the device is completely blocked, which completely excludes the possibility of moving the valve in any way. Once locked, the device remains fully functional for the original key. The second feature of this device was the press / shock-resistant bolt, withstanding pressure up to 1000 kg, it is almost impossible to fill it back into the bolt with either a crowbar or a jack. The price of this model is about 8000 rubles.

Viatec YB-600

The 4th place in the ranking of the best door locks in 2018 belongs to Viatec YB-600. The electromechanical system is suitable for installation at home, in high-security facilities, offices, etc., due to the ability to integrate with ACS. A feature of this model is the “Fail Safe” function: the system is unlocked in case of loss of the electrical signal, if it was not mechanically locked - with a key. One more important advantage of this model: auto-blocking on expiry of time, i.e. the mechanism will automatically close if you forgot to close it - a great option for those who like to go for a walk without closing the door behind them.

Perco LB72.2

Perco LB72.2 is the best door lock for an entrance door of the third class of protection. The main feature of the device is power supply through the strike plate, i.e. power does not have to be fed to the most secret mechanism. The control (opening / closing) of the device is carried out through a computer (for example, by Access Control Systems), through a button on the door, or by a key. Perco LB72.2 is recommended for installation in strategically important doors (back door, emergency exit): if the lock was not locked with a key, but the bolt is closed with an electric pulse, then in the event of a power outage, the lock opens - such a system will allow the door to be unlocked in case of emergency when the door is de-energized.

Cisa 15.535

Cisa 15.535 - electromechanical lock mortise type 4 class (armored lock), the best door lock for a metal door. Installing a similar protective system recommended for armored entrance doors. An anti-clamping system became a design feature, the bolt of which is almost impossible to return back to its place if the device is closed. The crossbar has 6 thick, steel cylindrical rods: the four lower ones are opened with a key, the other two (upper) are used to lock the door from the inside - you can close and open the upper crossbar using either an electrical impulse (12V) or a key. The manufacturer warns that you should not hold down the electronic deadbolt button for a long time, otherwise there is a chance to disable the electromagnetic mechanism.

Titanium-Hybrid Pro

Titanium-Hybrid Pro - the most best castle on the door in 2018 electronic type. This is a hidden invisible bolt, which can only be opened with the help of remote control management. The system is powered from a common network, and from 12 volt batteries (in case the main power is lost). The manufacturer is very prudent, and built an additional lithium-ion battery inside the case - this is the third power source, a backup one, it will be needed if the other two fail to work. Titanium-Hybrid Pro lock of 4 protection class, the bolt of which has a resistance of more than 400 kg. , which almost completely eliminates the possibility of forcefully clamping it back into the sinuses. The device supports up to 35 registered key remotes. The constant change of the cipher excludes the possibility of copying and changing keys.

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