A reliable garage door lock is necessary in any case, even if the territory of the garage cooperative is well guarded. No security guard with a 100% guarantee can keep track of dozens of garages. The rule "protect yourself" works here more than anywhere else. The best gatekeeper for a garage is a secure gate with a good lock.
Choosing a castle
It is necessary to treat the purchase of the castle with all care and thoughtfulness. When buying a lock, consider the following factors.
- You should ask the seller about the category to which this lock belongs. To close the garage, only a special garage lock is suitable.
- The keys must have a serial number: if there is no such number, then the key is made in a handicraft way, and you should not buy such a lock.
- The reliability of the garage lock is the most important indicator. The gate structure is quite massive and durable. A lock must also match the gate: the walls of the case must be at least 3 mm thick, the lock must be securely fastened to the gate leaves.
- Choosing a lock for a garage is not the case when you need to save money. You can finally decide on the choice of a particular model only after consulting with experts.
- You should not choose super-complex, "fancy" constipation. The smallest distortion of the gate leaves is enough - and such a lock can fail.
The domestic market gives a huge selection of garage locks. All of them can be divided into two main categories: keyless and key. The key lock is a familiar design that closes and opens with the help of special keys. The keyless option is certainly more preferable: here the gate is opened by dialing a digital code. The limiting factor is the rather high price of such a device.
Consider the main types of locks that are used as garage locks.
Mortise locks
They are fixed on the gate leaf with the help of the front plate (end plate). The reliability of the entire structure depends on how well it is made. The best option is if the front plate has a thickness of 2.5 mm and is well attached to the lock case.
In their design, they are somewhat reminiscent of mortise, but they are installed from the inside of the garage. The most important rule: such a lock must be opened from the inside only with a key! This will help to keep the car, even if the attacker entered the garage: there is no possibility to steal the car, because the gate remains securely closed. Bolts play the main role in such mechanisms. When the gate is closed, the bolts come out of the lock case, when opened, they enter it. It is clear that if there are a lot of bolts, then the lock will be more reliable: the mechanical load is evenly distributed over the body, which will significantly increase the life of the lock.
Padlock garage lock
This is the good old method of closing the gate. The same lock that "Does not bark, does not bite, but does not let into the house (sorry, into the garage)." Such a lock is hung on two eyes made of durable metal. For the manufacture of eyes, either metal plates or a round section rod with a diameter of 8-10 mm are used. The disadvantage of padlocks is a low level of reliability.
To make the padlock stronger, it is suspended as close as possible to the door leaf. This somewhat reduces the risk of hacking. But just "a few". In recent times, a lot of hacking tools have appeared. In addition, some "craftsmen", in order to open the garage, hook the cable to the lock or metal eyes. If you pull the car hard, few gates can withstand such a load. So a padlock does not save from modern means of hacking.
Garage locks of level and cylinder type
Cylinder locks are excellent protection against intruders. It is almost impossible to find a key to them, since the lock is equipped with five or six code elements. But cutting down such a lock from the garage is more than realistic. Recently, locks with protection against sawing have appeared, but there is still a risk.
In lever locks, the key beard has teeth of various sizes. The teeth must necessarily correspond to a set of the thinnest plates in the locking mechanism. If there is no match, the lock cannot be opened. The undoubted advantages of lever locks are: low price and resistance to breaking.
Zinc coating makes the lock resistant to corrosion. Such a lock makes additional protection possible (for example, coded). The disadvantages of the lever design are the large size of the key and the ability to open the lock both from the inside and from the outside. However, for a garage, this is more of a plus than a minus. In addition, the lever mechanism is very unpretentious in maintenance (you can forget about the traditional lubricant, to which dust and dirt stick). It is no coincidence that people with experience recommend a massive lever option for a garage.
crossbar lock
Due to the ease of installation and operation, crossbar locks have become widespread. They belong to the mortise type locks. The crossbar is a locking device. When voltage is applied to the lock, the bolt is pushed out and held closed. To open the lock, it is enough to remove the voltage supply to the solenoid. If you open the door and apply voltage to the lock, the "smart" control system will "wait" for the door to close. And only after that the bolt will work.
Rack and screw type locks
Of the "secret" locks, these are the simplest. Rack type locks can be installed on both gate leaves. Their disadvantage is their low reliability. In addition, they are large and difficult to open.
When buying a lock, be sure to pay attention to its resistance to low temperatures. To defrost the lock, you should buy a special lubricant.
The increase in garage break-ins is forcing motorists to look for the best ways to protect their car. The best option is to choose a quality garage lock. Let's look at some popular models of them.
General requirements for a castle:
- Case material - only stainless steel.
- It is more reliable to install several locks, and as far as possible from each other.
- There must be at least two of them on the gate.
- Choose locks from different manufacturers.
- The main one is only level.
- The best additional lock is a private security alarm.
Lever lock: it’s better not to come up with a garage
Why lever? Because overhead and mortise cylinder locks are capricious. They are sensitive to distortions that occur due to seasonal fluctuations in the soil, are afraid of dust and dirt, and are unpredictable in the cold. And after all, distortions on the gates, and mud, and severe frost - it's all very Russian.
Lever locks, of course, are not ideal, but they behave better in an aggressive environment, they wedge and break less often. We are all for them.
Which lock you choose, mortise or overhead, there is not much difference. If you plan to sheathe the gate, then it is better to use a mortise one: the sheathing will cover the mechanism from dust, dirt and moisture. If you take an invoice, install it so that the attachment points are not visible from the outside.
Also make sure that the lock is opened from the inside with a key, and not with a turntable, as in "home" models. Some thieves ignore doors and break into garages in wallwalk mode:
Thus, even if a thief breaks through the wall between the garages and gets to the car, he will not open the gate so easily. There is no way to break the lock. Not that it was backbreaking work, but you have to tinker and make some noise.
Requirements for a good lever lock:
- At least three crossbars (although there are exceptions - for example, the legendary RIF-1. It has two crossbars, but how thick they are).
- 4 class of burglar resistance.
- Hardened insert on the crossbar for protection against sawing.
- Hardened ball in the rack (protection against drilling).
- Zinc coating suvald (corrosion protection).
- Armor plate (protection against knocking out and drilling).
- For overhead locks: welded body (protection against punching).
- Strong and massive fasteners.
On some models there are exits for vertical rods for multilateral locking. To install traction or not, it's up to you. Yes, it is more reliable with them, and they behave normally in apartments. But in the garage during the period of frost and thaw, you suffer with them.
If you think not, traction is good and it's just that our hands are crooked or the climate is some kind of anomalous, we invite you to discuss in the comments.
Yes, it is durable (in theory it will last 50 years), but it is stubborn and walks very tight (ladies suffer in winter). And all right, if all this was compensated by sane protection, but it is zero point zero tenths here. The rack lock is quickly and silently opened with a simple screwdriver, or even a pencil. However, it is strange to expect a miracle from a device where the whole structure is a body, a crossbar and a spring.
Padlock more for complacency
We recommend installing a padlock in the garage (and then as an additional one) only as a third or fourth locking device. Or if eyes are welded to the gate. Because if you leave the eyes free, a thief can throw a cable into them and break the gate. And someone can joke and hang their castle.
It is important to understand that barn locks with a U-shaped shackle are props and an illusion of protection. Even if the body is all-metal, even if the shackle is short, made of boron steel, hardened and electroplated. They won’t crack it - that’s how they cut down the eyes.
It is better to look towards the closed padlock (“tortoise”) with a thick locking finger. This design protects not only the mechanism, but also the lugs. As a guide, here is our model. Quite a reference "turtle".
One condition: a closed padlock must be adjacent to the door without a gap so that it is impossible to put a cable or a mount under it. It is advisable to cover it with a protective ring from a pipe or a box (as in the photo).
The castle is fine. What else to do to protect the garage from opening?
- Install an alarm, at least the simplest howler.
- Install video surveillance.
- Cover the internal locks with OSB or cloth so that thieves scurrying by do not see which lock you have.
- Put a vertical lock or, if the lock allows, vertical rods (but there are disadvantages, see above).
- Weld a corner to the hinges (to protect against cutting).
- Weld steel armor strips on the gates and the gate (this will prevent the thief from slipping a crowbar, bending the sash and getting to the crossbars).
- Install a lock hatch on the gate (not very convenient, but it will make the thief tinker).
- Reinforce the roof: lay a chain-link mesh or reinforcement between the beams.
- Strengthen the walls with a lattice of corners.
This is offhand. Know something else - we are waiting for your thoughts in the comments.
The material was prepared by the editors of the company Palladium – manufacturer of locks and hardware and door fittings
When buying locks, many garage owners try to get massive ones with thick bolts, assuming that such devices are more difficult to break. However, this is a misconception, since the resistance to opening depends on the design of the lock, and not on its massiveness.
The simplest types of garage locks
The oldest type of locking devices for garages is the lock. screw, which was widely used several decades ago and was mainly made in an artisanal way. The most common do-it-yourself screw-type garage lock is a key that tightens a bolt or stud. In this case, the gate leaves are pulled together.
Homemade screw lock for the garage has a low resistance to burglary, and at present it is used, as a rule, as an auxiliary one. To perform the main protective function, a more reliable locking device is acquired.
The second type of locks, which are low cost and extremely easy to install, is the lock hinged. However, most of these devices are easy to knock down with a strong blow or cut (eat) the bow.
Advice! If you still opted for a padlock - pick up a copy with a body made of a solid metal plate and a hardened steel lug.
Some garage owners protect the lock from burglary by closing it, along with the lugs, with a steel box. There are padlocks of increased stability, but their cost is very high.
Internal garage locks - overhead and mortise.
The most popular in recent years are internal garage locks - overhead and mortise.
Crab locks
Multilateral locks are called "crab" or "spider". When deciding whether to install such a locking system, you should consider all its pros and cons.
The main difference between the design of multilateral locking devices and conventional locks is the ability to install vertical rods or crossbars. It is desirable that these elements are made of hollow tubes or profiles, and not of fittings, and the entire system moves in plastic bushings.
Advice! A factory-made system is more expensive than a do-it-yourself garage lock, but much more reliable and durable. A self-made multilateral lock with rods from reinforcement can fail in just a year. Therefore, handicraft traction is not recommended to be installed at all.
Advantages of locks of the "crab" system:
- Such a device is an additional barrier when opening the gate leaf with driving the crossbars back into the lock.
- A device with vertical rods is more difficult to open constipation with a grinder.
The disadvantages include the following factors:
- A multi-sided lock does not guarantee protection against the most popular methods of hacking - drilling, knocking out a cylinder, selecting master keys.
- Vertical rods put an additional load on the lock mechanisms.
- Crab locks require more force when turning the key.
- The more complex the design of the system, the less the lock will last.
- The need for additional material costs.
- It is very problematic to repair or replace such a system.
Advice! If you still decide to install the “crab” system, then, firstly, you should not save on purchasing a high-quality copy with factory-made rods, and secondly, the installation of the lock should be carried out by a specialist immediately after installing the garage door.
Homemade garage lock
Craftsmen have created many varieties of homemade gate locks, among which a rack lock with a falling key stands out for its functionality.
The essence of the operation of this locking mechanism:
- The toothed rack with guides is fixed on the inside of the gate of the car box.
- The rail is driven by a key through a small hole in the gate leaf.
- The key has such a design that when it enters the hole in the sash, it falls down on the hinge and engages with the rail.
- Turning the key moves the rack to the side.
Attention! If the burglar is not familiar with the details of the design of a particular rail and does not know at what distance from the hole it is located, then it is almost impossible to pick up a master key for such a device.
Such models are in serious competition even with expensive factory-made copies. The main disadvantage of homemade garage door locks is the long key.
One of the ways to reliably protect your car box from hacking is to install several locks of various designs.
Speaking about which garage lock is better to choose, you should understand that the first thing you need to take care of is the door itself. There is no point in a garage door made of sheet metal that is less than 4mm thick.
In the garage, the lock will need to be installed either on the gate or on the gate. Therefore, the lock must be strong and massive, like a box made of a sheet of metal, the minimum thickness of which is 3 mm, as well as massive strong crossbars. In addition, the fastening of the lock to the door must also be strong. According to the possible installation methods, locks are divided into overhead, padlock and mortise.
It should be noted right away that it makes no sense to put a padlock, since any person who is more or less versed in locks can break it in 5 minutes, especially since in recent years more and more new and high-quality tools have appeared that allow you to do such bad things . Another variant of hacking is also possible - attach a cable to the car and drive. It happens that the gate can not withstand such force and break.
The choice must be made between a mortise or overhead protective mechanism. It is worth knowing that there are no fundamental differences between them. The main thing is to make sure that after attaching the patch lock, the points of its fastening are not visible from the outside.
It is also recommended to think about how to exclude the possibility of opening the lock from inside the garage. In this case, the gate must be fastened either with the help of internal loops, or stretched from the inside. This is necessary so that the gate does not fall if someone tries to cut off the hinges.
It is important to understand that the potential possibility of opening a door, garage or safe lock using master keys will depend on two factors:
- Technological level of manufacture of the locking mechanism.
- The presence of special traps in such a secrecy mechanism.
It is recommended to choose a massive lock for a garage. The choice can be made both among well-known expensive manufacturers, the price of which is about $ 100, and among domestic ones, which can cost $ 20, but are no worse (in some respects even better). But it is worth noting that there are not very many Russian high-quality manufacturers.
Problems that can be encountered when using protection mechanisms
One of them may be, for example, Kerberos. This manufacturer has recently appeared quite good locks with a level of protection of class 4, with various innovations that protect against hacking, with some interesting solutions against master keys. There are options for locks with a zinc coating that can protect against corrosion, and for a sufficiently large number of years, in addition, there will be no need for lubrication. This is an important nuance, since various dirt, dust, moisture, and so on often get into locks. In other locks, which will be oiled, sand and dust can stick to the levers, and this makes it difficult for them to slide between each other, and, accordingly, may contribute to the jamming of the lock. Dust will never stick to a dry lever.
Another advantage is the insertion into the crossbar, which prevents it from sawing. It is worth noting that this manufacturer has such inserts that are really worthwhile, unlike, for example, the clasps of the manufacturers “Class”, “Cerberus” and some others with similar accessories.
What you need to pay attention to when buying protective mechanisms
There is another option - the purchase of a product that has scratches on the levers, burrs along the edges, metal chips in the lock box, large gaps that do not meet the necessary requirements of GOSTs, and it is completely disgusting to pick up the keys to it. This indicates that such a clasp was made in haste by a drunken craftsman with a hammer, file, and something else. Which garage lock is better to choose is up to everyone to decide on their own, but it is unlikely that such a product can be reliable and give confidence that the car will remain in its place.
All of the above was said so that interested people know that when buying a lock, you must ask the seller to open the lid of the box. This is necessary so that you can make sure that such locks are really of high quality and reliable. It is important to know that you need to pay attention to the appearance of the machined surfaces of the parts, possible gaps between them (they must comply with state standards), whether there are chips in the lock box, whether the keys are made of high-quality metal. If the garage lock matches this description, it means that its parts were made using good factory equipment, therefore, the lock will serve reliably and for a sufficiently large number of years.
Statistics show that a fairly large number of thefts have occurred in Russia over the past year. At the same time, they were committed both from a garage protected cooperative, and from someone's separate garage.
Practice shows that the watchman is not at all effective when it comes to a garage cooperative with a large area. That is why it makes sense to think about which lock is better to choose for a garage and how to further strengthen your gate.
Some fairly common examples of garage break-ins
- This suggests that you definitely need to take care of buying a castle, the quality of which is better. In this way, such problems can be avoided. The first example is that a slab (which often serves as a visor) can protrude above the garage. You can put a hydraulic jack, a log on top of it. It's all rest against the visor and raise the plate, after which a person will be able to crawl into the gap. The last action will be unlocking the lock from the middle and opening the gate. Note that this process may only take a few minutes.
- The second example is to break the back wall or roof of the garage and open the lock from the inside.
- The third example is to open a neighboring garage, in which the doors or lock are simpler. After that, break the side walls and get into the desired garage. There was a case when thieves broke the walls of about 8 garages with the help of a crowbar (they are usually half a brick thick).
- The fourth example is to beat off the lower part of the gate leaf with a crowbar. In the gap that has formed, run some man of small stature, and he will be able to open the garage from the inside.
- The next example is to drill out the bolts that secure the garage lock to the gate. After that, break the lock mechanism, cut the metal of the door using welding, metal shears, and so on.
Tips for buying a garage lock
When choosing a lock in a store, you need to try to understand whether the seller who answers questions has an understanding of what is at stake. It is necessary to clarify the type of product that you liked (its purpose should be exclusively for garages). Next, evaluate the appearance of the keys - they must be numbered.
If the choice fell on a fairly complex lock with a three-point locking system, it is recommended that you first recall the design of the gate in your own garage. This is necessary to take into account the fact that the slightest misalignment of the wings (especially in winter) can dramatically increase the resistance to movement of vertical rods. Consequently, at one fine moment, the owner runs the risk of remaining near a locked garage, while in his hands there will be a broken key.
It can be concluded that the optimal garage lock would be a variant with a lever secrecy mechanism (it is crypto-resistant and able to withstand fairly large loads). It is not recommended to get involved with handicrafts, because each well-made part requires special equipment, strict adherence to technology and an appropriate engineering base.
It is worth noting that even a highly qualified locksmith is not able to provide this. In addition, such locks are made according to the same scheme. Therefore, with one key it will be possible to open all the products of this master.
What to do if the latch is jammed?
To prevent the maintenance of garage locks, it is recommended to regularly lubricate them with liquid oils. However, it is important to remember that in winter the oil tends to freeze. The solution would be to use frost-resistant oils. In cases where there are problems with unlocking the garage, in no case should the use of brute physical force be allowed. The problem may be caused by the skew of the gate in the spring. To solve it, first of all, it is necessary to restore their geometry using a jack or a powerful lever. Only then should attempts be made to scroll the key. If the secrecy mechanism is clogged, you will need to fill it with any lubricant that has a high penetrating power (this can be, for example, WD-40). After a few minutes, you can try to open the gate again.
Another option at low temperatures would be to use gun oil (which is cheaper and available at any gun shop). The use of engine oils is not recommended, as their use can cause corrosion of parts due to the nozzles used.
What is the best lock to buy?
Speaking about which garage locks are the best, you should understand that the answer will depend on many factors. It goes without saying that the best products are those that have increased reliability and are made by leading manufacturers.
However, the fact is that such locks for garage doors are quite expensive, therefore, many people cannot afford such a purchase. It should be understood that everything will depend on how much the owners value their cars and everything that is in a locked room. If there is something to lose, of course, there is no need to spare money.
There is another option (one that is used by a fairly large number of people) - to put some decent and inexpensive middle-class locks with various designs.
You can put three types of products - invoice, mortise and even the most ordinary padlock. At a minimum, this will help save time that thieves will have to spend opening all the installed protection mechanisms. Do not forget about the tips for strengthening the gates and, which were described in sufficient detail above.
Most garage communities are secured, but no one can replace the solid protection that a quality gate lock provides to a valuable property. As a rule, owners mount several locking mechanisms at once for greater reliability. But, the main thing is to pick them up or create them with your own hands so that the car and the interior of the room do not become prey for intruders.
Garage lock options
The designs of garage locking mechanisms do not differ in a wide variety. The entire range can be divided according to the method of installation on the gate and the type of hidden part.
Castle structures according to the installation method
All locking mechanisms according to the installation method can be of the following types:
–
Mortise. Such structures are mounted on a special metal plate with a thickness of at least 2.5 mm for better protection. Before direct installation of the lock, the bar must be attached to the gate as efficiently as possible. 
– Overhead which are mounted on the gate leaf. To better protect the property inside the garage, a lock is mounted that can be opened from both sides with a key.
Important! The number of locking crossbar parts must be at least two. 
–
Mounted used for installation in gate eyes. This mechanism has its advantages, among which we can distinguish the presence of a case made of a very reliable and high-quality material. It is quite difficult to saw it or somehow break it. It is very important that with proper installation, the internal parts of the lock are not subject to freezing, which can often be found in lever systems that suffer from the presence of condensate inside. In addition, when installing a padlock, protection of the eyes is additionally created in the form of a welded-on side made of thick metal. The most famous options for padlocks for garages, which have gained wide popularity, are mechanisms called Bulat. 
Locks according to the device of the hidden part
The lock for the garage, depending on the version of the hidden part, can be of a lever, cylinder, crossbar, screw or code type.
The first type is a design of metal plates, which, when the key penetrates, are arranged in the desired sequence and the device is unlocked. The reliability of such a mechanism is determined by the number of plates in it. For example, a lock containing six levers has more than 1 million opening options. 
The basis of the lock with a cylinder inside is a metal core with movable pins. In the case of lining up the parts in a given order, the mechanism opens. Unlike those analogues that are intended only for ordinary entrance doors, such a locking mechanism for a garage has a more powerful body and the presence of overhead parts that prevent the possibility of drilling the insides of the mechanism.
Important! The two described types of locks are among the most reliable and durable. 
The bolt type lock belongs to hidden structures, and has gained wide popularity among garage owners for its ease of installation and use, combined with excellent protective capabilities. In addition, its cost is not prohibitive. 
Devices with a small degree of reliability can be called screw locks, which are now used less and less. The essence of their action is that a special threaded key, when turned, shifts the deadbolt in the right direction. One of the types of such a mechanism is a garage lock with a falling type key, which opens from the rotation of a gear. 
The latest option for a garage lock is a code mechanism, which can be disc or push-button. At the same time, the latter type is not very common, since it does not have a sufficient measure of secrecy. Such locks, as a rule, are used as additional ones for more reliable fixation of garage doors. 
Criteria for choosing a garage lock
The first step in buying a garage lock is choosing its design. The best option would be the mechanism that is easy to operate, but it meets all safety requirements and is able to reliably protect property from encroachment by third parties.
With proper selection of a garage lock, the following rules are followed:
5 You do not need to purchase top-secret locks for the garage, as in conditions of high humidity and constant external influence, they will not be able to fully function. For example, even a small distortion of the door leaf can lead to jamming and the need to break the gate and install another lock.
6. Any garage door should be equipped with two types of locks. One should be overhead or mortise as the main protection, and the second - hinged for additional reliability.
7. No need to save on locking devices.
8. In order not to purchase a low-quality fake, you need to buy locks only in specialized stores. There, qualified consultants will help with the choice.
Common models of garage locks
Now there are a lot of manufacturers of locks for garages, which allows, among all the variety, to choose exactly the option that will suit the owner in terms of reliability and durability. Consider the most popular locking mechanisms among garage owners:
Mechanisms brand "Kerberos" manufactured in various versions. For example, a lever lock of this manufacturer has 5 million combinations for opening. All locks for the garage are made only of durable steel with armor-piercing pads. In addition, devices are often equipped with additional methods of protection against hacking. The cost of such a mechanism is 2 thousand rubles. 
Castles "Mottura"from an Italian manufacturer. Such devices are of high quality and are made only from proven components that meet all requirements. The manufacturer provides a 5-year warranty on all of its products. Such mechanisms can easily work in any conditions. But their cost is not very low and is about 2500 rubles. 
Pin-type lock "Garant Frontier».
This mechanism is very common among owners of private garages. According to information from certifying organizations, the lock is the most resistant pin device known. When using a free pin or finger, the lock can be transformed into both a hinged and a stationary one. 
Castle construction "Avers".
This mechanism is produced in St. Petersburg and is a device with eight levers. Despite the fact that the manufacturer claims a unique burglary resistance, experts recognize only class 2 security in it. The price of the castle does not exceed 1000 rubles. 
"Elbor-Granite 282»
with cylindrical locking mechanisms that show high strength characteristics. 
Rack lock "Stalf»
with open key. Inside the lock there is a four-section secret, and the rack mechanism allows the bolt to work according to the inversion system. This means that such a lock can be installed both on the right and on the left side without the need for alteration. 
Lock with a falling key "Crane"
- the brightest representative of devices of this type. Manufacturers call this lock products of increased secrecy, but practice shows that this is just a reverse action mechanism. To open this lock, it is necessary to push the key inward and bend the turning part. After the key is pulled out in the direction "towards itself" until it stops and turns clockwise until a characteristic click. This means that the teeth of the key are aligned with the recesses in the lock mechanism. After that, you need to forcefully pull the key towards you and turn it in the other direction. 
Do-it-yourself lock making
Often, those who have access to quality metal, a lathe and welding, and also have sufficient experience, create homemade garage locks. One such example is a lock that can only be opened from home. But this option is only available for garages that are close to the house.
At the same time, the garage doors are locked with a powerful crossbar lock. Moreover, it would be good to disguise the mechanism so that in the open state it would not be clear from the side which lock is installed. 
In order to get into the garage, a separate door with internal and conventional locks is installed on the reverse side. The internal mechanism is a solenoid type, which is controlled directly from the house.
With such a device, burglars, even when working with a master key, will not be able to open the internal lock. Electric locks are installed so as to attract as little attention as possible. 
The voltage for supplying the solenoids requires 24 V, and a discharge of several amperes is sufficient for operation. Some models are equipped with electric latches.
Often in winter there is a problem of freezing crossbars. Owners of internal locks can fight it by wrapping the lock body with fiberglass and nichrome wire. The thickness of the wire is chosen so that at room temperature the lock can warm up to 70 degrees. After the wire is again covered with a cloth and connected to copper cables. A protective cover is made on top. Thus, if an unpleasant problem arises when the lock is frozen, it will be enough to turn on its heating, which will take only a few minutes.
Conclusion
The garage must be well protected without fail and one of the main roles in this is played by a high-quality locking mechanism. It is difficult to choose a reliable lock among the modern assortment, but if you follow all the criteria and instructions, you can buy a really worthwhile thing that will protect the property of the garage from encroachment by third parties.
