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Copies of intercom keys
Trade House “Intercom key” offers:
FREE departure of the master.
The cost of one intercom (electronic) key is 200 rubles. (any complexity).
Lifetime warranty on intercom (electronic) keys (if not damaged).
We conclude a “key supply” agreement with organizations in Moscow and in the regions.
There are 3 common brands of intercoms that are used everywhere. Management of such systems is simple. Below is a detailed description.
Entering the service menu of the VIZIT intercom:
*#999, then 3 (or 4 for those that are older) digit code. If the code is correct, then it will beep once, if it is wrong, then 2 times. Meanings of buttons in the service menu.
Meanings of buttons in the service menu:
2-setting individual codes for apartments
3-key programming for entry
4-erasing keys from memory
9-In this case, the intercom turns off the magnet, to turn it on, press *
*-exit mode
#-setting confirmationHow to open the VIZIT intercom door?
If the default settings were not changed then *#4230 and the door will open.
Sometimes 12#345 also helps.
Change system passwords:
65535-B-1234-B-9-3-new code-B = Change master password (default 1234)
65535-B-1234-B-0-new code-B = Change shared password (default 1234567)
65535-B-1234-B-B-flat number-B-0-new code-B = Changing the apartment password (for each one, by default 4 characters)
Key operation:
65535-B-1234-B-B-flat number-B-7 = Record key to apartment No.
65535-B-1234-B-B-flat number-B-7-0-111 = Remove all keys from apartment #
65535-B-1234-B-9-7-111 = Delete all master keys
65535-B-1234-B-9-9 = Writing a new master key
65535-B-1234-B-9-9-0-111 = Delete new master key
Entry codes to intercom menus:
65535-B-1234-B = Service menu
65535-B-1234-B-B = User Menu
65535-B-1234-B-9 = System menu
(you can place an order by e-mail, send your details: exact address, contact phone number, list of goods. We will issue an invoice for you. After receiving full payment, we will send the goods from the warehouse within 1-2 days)
– FREE departure of the master.
– The cost of one intercom (electronic) key is 200 rubles. (any complexity).
– Lifetime warranty on intercom (electronic) keys (if not damaged).
– We conclude a “key supply” agreement with organizations in Moscow and in the regions.
If interested: There are 3 common brands of intercoms that are used everywhere. Management of such systems is simple. Below is a detailed description.
1) Press any number and hold until the inscription appears, then enter the engineering code.
2) Press the bell and hold until the inscription appears, then enter the engineering code.
Entering the service menu of the VIZIT intercom: * # 999, then a 3 (or 4 for those that are older) digit code. If the code is correct, then it will beep once, if it is wrong, then 2 times.
**-out of the mode
If the default settings were not changed then *#4230 and the door will open. Sometimes 12#345 also helps.
Change system passwords: 65535-B-1234-B-9-3-new code-B = Change master password (default 1234) 65535-B-1234-B-0-new code-B = Change general password (default 1234567)65535-B-1234-B-B-flat number-B-0-new code-B = Change the apartment password (for each its own, by default 4 characters)
Working with keys: 65535-B-1234-B-B-flat number-B-7 = Recording the key to apartment No. 65535-B-1234-B-B-flat number-B-7-0-111 = Deleting all keys from apartment #65535-B-1234-B-9-7-111 = Deleting all master keys65535-B-1234-B-9-9 = Writing a new master key65535-B-1234-B-9-9 -0-111 = Deleting a new master key Entry codes to the intercom menus: 65535-B-1234-B = Service menu 65535-B-1234-B-B = User menu 65535-B-1234-B-9 = System menu
Already all the entrances are equipped with intercoms, often the key to it is lost or forgotten at home. In order for such situations to happen less often, you do not have to carry an extra magnetic key with you, you need to know how to open the intercom using your phone. Most electronic keys work precisely due to NFC technology or “Communication in the near environment” (NBC). To use such keys on your phone, a special chip must be installed.
KBO or short-range communication is the latest technology that allows data to be exchanged between two devices at a distance of about 10 centimeters. Often, the technology is used in contactless payment services for purchases, applications for exchanging information between devices. With its help, they create electronic keys, read NFC tags. This does not require a camera, it is enough just to bring the tag into the coverage area of the OBE module. This technology might remind you of the well-known Bluetooth, but NFC does not require manual connections and consumes much less battery power.
A special chip is built into the case of various devices: smartphones, tablets, laptops, smart watches, rings. It has a very small size, so often its location is marked to make it easier for the user to find and connect to it.
Devices equipped with this technology support three modes of operation. This is reading and writing data, one-time communication and emulation of a bank or key card. Let’s analyze the modes in more detail:
- Reading and writing data. This mode allows devices equipped with a special chip to scan KBO tags, information placed on them, at a short distance, or interact with other NFC systems. This type of communication also allows you to write new data to devices;
- P2P or peer-to-peer mode. Users can exchange information using P2P mode with just one touch. Data for exchange can be Bluetooth or WI-Fi network settings, photos, videos, as well as text files, access keys;
- Card emulation. This mode is intended, in most cases, for payment systems. The user pays for his purchases with one touch to the terminal, for this it is necessary to have an OBE system on a smartphone.
There are two types of device communication in the system. With passive communication, one device (initiator) creates a magnetic field and sends a request to a passive device, which, in turn, responds to the received request. This communication mode is used in all three operating modes. The P2P system additionally uses an active communication mode. During this process, first one device creates an electromagnetic field, sends a request, then another.
The technology of contactless information exchange is almost perfect, it is convenient in everyday use. But there is a minus, this weakness is cyber scammers. In a crowded place, a person loses his vigilance, and for a fraudster, this is a chance to cash in on you. The electronic robber puts a pre-prepared terminal with a specified amount to the victim’s pocket, which can probably contain a phone. Provided that the NFC function is enabled on the smartphone and does not require any additional steps to confirm, for example, a fingerprint or a PIN code, the money is debited.
Avoiding this is easy enough. Turn off this feature on your smartphone when you are not making any purchases. Thus, you will protect your funds from the hands of scammers, do not allow them to be debited.
In order to open the intercom using the telephone, it is necessary that both devices support OBE technology. A special module for reading NFC tags must be installed in the smartphone, and in the intercom – to control its operation. Most people also want to use the phone as an electronic key card, but for this it is not enough only the OBE, an additional Secure Element chip is required.
To pay for services or to use electronic keys, you need a KBO. Let’s figure out how to find out if such a system is built into your phone? There are several ways to do this:
- Assess the body of the phone. This is the first stage of the search for NFC technology. Find the corresponding “NFC” inscription on the case or on the battery of the device. If you didn’t find it, go to the next step;
- Control panel. Open the smartphone control panel. To do this, it is enough to make a slide from the top of the screen to the bottom. In the control panel, find the corresponding shortcut;
- Third Party Applications. If the previous two methods did not help you, you can use third-party applications, find them in the phone’s application store. One of them is nfc tools pro.
Thanks to the search in the settings, most users determine the presence of KBO.
First go to your device settings:
- In the search bar, enter “NFC”;
- Tap on the desired icon, turn on the NFC function.
If the search was unsuccessful, then your device does not have a special chip installed, and the OBE system is not supported.
The procedure for checking apple smartphones is not much different from checking Android devices. But you should know that there is no NFC system on iPhone models earlier than the sixth version. Some IPhone models can only make contactless payments, other features of the KBO technology are not available for them.
To correctly configure the module, you need to perform a number of actions:
- Turn on the OBE module. To do this, find it in the settings, move the slider;
- Install an application that will create and synchronize maps, keys and tags.
In the app store of each smartphone, there are a lot of specialized applications with detailed setup instructions.
To be able to open the intercom with a smartphone, you need to copy and save the intercom door key to the phone.
To do this, follow these steps:
- Install an application that allows you to emulate electronic keys;
- Run the application and scan the tag from the intercom;
- Save the created key.
Make sure the intercom recognizes the created key.
The main task is to bring the phone to the intercom and “read” the NFC tag installed in it. If the scan is successful, the code is saved on its own, no need to check it manually. Now that the code has been downloaded to the phone, both devices are synchronized, you can no longer carry a magnetic key, but simply use your device.
After creating an electronic key, it is necessary to check its performance. Let’s analyze this procedure step by step:
- Go to the app you downloaded earlier;
- Bring the smartphone to the intercom at a distance of no more than ten centimeters;
- After a few seconds, the smartphone reads the tag and the intercom will open the door.
If you could not open the intercom, check if NFC technology is enabled on your phone.
In case your smartphone is not equipped with such a system, you can equip it with additional NFC equipment:
- Antenna. Remove the battery from the smartphone and attach a special antenna module to it, place the battery in its place, place the antenna outside the case, close the lid;
- Mark. In the hardware store you can find mobile tags. Consult with the store manager which tag is suitable for your smartphone and purchase it. You can bind multiple tags to one device. Then, install the application, activate the new module, then check its performance using a device equipped with this technology from the factory.
One of the disadvantages of NFC technology is different controllers that support different tags. Below is a list of phones and labels they support.
Such a system is completely safe if you use it to get into your own apartment. However, it is forbidden to use technology to break into someone else’s home, such actions are punishable by law. If, after using NFC technology and a common intercom, it ceases to function properly, this is considered as damage to property, and is also a criminal offense.
NFC technology has opened up great opportunities for humans. With its help, you can pay for purchases, open the door of the intercom and even your personal account, subject to the availability of an appropriate lock. To do this, you need to register the code in a special application. Before each use, turn on the CCD; without this, access to the intercom or lock will be impossible. The technology replaces many magnetic keys with electronic ones, allows you to exchange data with other devices, and make contactless purchases. All this adds convenience to everyday life and saves a person from unnecessary trifles.
Making duplicates of intercom keys Moscow
Vyacheslav: Duplicating intercom keys
Making duplicates of intercom keys. Departure to the client, production on the spot. There is a system of discounts.
+7 916 443-xx-xx,
Yuri: Production of intercom keys keys for intercom
Good afternoon, we are pleased to offer you the production of any intercom and electronic keys, tablets, key fobs, keys from the ACS system
●●●●●
► We make such keys as
Intercom keys rw1990
KS-4TM ТМ08v2
ТМ-08 ТМ-08v2 ТМ-08 Vi
ТМ-08 Vi-2 ТМ-2004 ТМ-01
ТМ-01С ТМ-01А RW-1990 RW-1990.1
RW-1990.2 Cyfral DC-2000
contact keys Т5557
proximity keys Т5577
► Making a copy of a duplicate of pass cards, intercom keys
RFID NFC EM-Marin 125 kHz key fob EM-Marine key fobs
► Making copies of intercom keys, pass cards, E-marine, Mifare Dallas Cifral
●●●●●
We make intercom keys master keys that open intercoms Visit Vizit Metakom Metacom Cyfral Cyfral Reikmann
Raikmann Eltis Eltis, Marshall, Keyman KeyMan Leader and smart home keys do key repairs
We also make barrier cards, if you need to make a barrier card, or a card for turnstile gates, or an office access card, we can also help you.
A workshop for the production of all types of intercom keys, including such as Mifare ferrite key Slippers, can offer you a visit of the master to the address at any time convenient for you.
●●●●●
► We work without weekends and holidays
► Orders are accepted around the clock, just write Whats App
WhatsApp what key do you need and we will contact you.
+7 985 520-xx-xx
Irina: Making keys of any complexity
Making duplicate door, intercom, garage, safe and car keys with a chip. Copying remotes from gates and barriers. Qualitatively and with a guarantee, discounts on volume.
+7 925 771-xx-xx, , Center for Consumer Services OK Master
Tatyana: Making duplicates of magnetic electronic keys.
Production of duplicates of magnetic electronic keys – contactless cards, duplicates of intercom keys, contactless key fobs, RFID tags of various types in Moscow, Pushkino, Mytishchi. From 10pcs. Departure of the master for free. Additional discounts for large orders! A contactless office card duplicate is made in your presence in a minute.
+7 926 581-xx-xx, ,
Ivan Bragin: Making duplicate keys
The network of workshops “Ivan Bragin” will make duplicate keys: intercom, door, safe, furniture.
Let’s make flat, semicircular, socket, one and two-flag wrenches.
2 more lines
+7 499 995-xx-xx, Watch workshop Ivan Bragin
household services: production of keys of any complexity
production of keys of any complexity, urgently, in 1-5 minutes. If you urgently and professionally need to make a duplicate of door, car, intercom keys, remote controls for gates and barriers, then the right decision is to contact our workshop
+7 968 330-xx-xx,
IE: Production of intercom keys
Making duplicates of intercom keys. – Production of ordinary keys. – Photos of the documents. – Clothing repair.
+7 926 496-xx-xx
No novel: Duplicate chipped car keys
Moscow, m. Vykhino
key rings; – copies of keys for intercoms of any type; – as well as duplicates of rewritable thin and thick contactless rfid-kapt. – Our prices are among the lowest in Moscow and.
+7 906 790-xx-xx, No Roman
serg: I will make a duplicate of contactless rfid pass cards
Moscow, m. Maryino
+7 916 265-xx-xx, serg
Leonid: Duplicate intercom keys
+7 958 828-xx-xx, Leonid
We will make duplicates of almost all intercom keys
Moscow, m. Novogireevo
we will make duplicates of almost all intercom keys, magnetic or office passes (on the spot) with verification!!! Departure of the master is free of charge (South-Eastern Administrative District). min. order 2 keys. good discounts when ordering from 5 keys.
+7 965 202-xx-xx
Mihail: I will make a duplicate of back-contact pass cards
Production of duplicate office passes, keys for intercoms, etc. – Departure around the Sokol district, Airport free of charge
+7 916 011-xx-xx, Michael
Vlad: Duplicate intercom keys
Moscow, metro station Petrovsky park, Petrovsko-Razumovsky proezd
Making duplicates of intercom keys on the spot with verification
+7 936 666-xx-xx, Vlad
Kirill: Copies of intercom keys, scud
+7 916 035-xx-xx, Kirill
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RFID key copiers (for intercom)
For a long time there has been a way to legally make a copy of the electronic key for your own intercom. Usually this is a duplicate for a second set of keys or a copy of an old key that you are afraid to break or lose. In this case, we select and purchase copiers of electronic RFID keys at 125 kHz. By the way, there is also a universal multi-frequency RFID copier that supports 125 kHz, 250 kHz, 375 kHz, 500 kHz. In most cases, it is enough to attach the original key, read the code, then quickly attach an empty blank key to write the code. Then it is worth checking the performance of the new key, and if necessary, repeat.
iButton key copiers (for intercom)
A good all-in-one combo device for programming standard electronic key blanks supports duplication of codes for both iButton keys and RFID keys at once. With the help of such a device, you can make a clone of a key for an intercom, an entrance door, an entrance gate, and so on. Advanced users can choose a USB/COM set-top box programmer for a computer that allows you to read and store the code separately from the key.
433 MHz Wireless Remote Copiers
433MHZ remote controls for doors and gates are one of the most popular orders on Aliexpress. For example, the universal KEBIDU four-code remote control model has over 7,000 orders and 4,000 positive reviews. I also offer the most popular copiers of 433 MHz wireless remote controls for gates and barriers from CAME, NICE, DOORHAN, BFT, HORMANN, MARANTEC, FAAC. Naturally, before ordering, carefully read the description.
RFID rings, blank electronic keys for writing
Be sure to take a set of clean iButton blanks and RFID keys in stock for the copier. RFID recording rings can replace RFID key blanks – this is a separate interesting topic, recording the key code from the intercom on the ring. Ordinary ring with a writable RFID tag. In the lot, choose the desired ring diameter and frequency of 125 kHz.
Don’t forget to purchase “blanks” for RFID/iButton keys, and when choosing a remote key fob, choose the model with the desired radio frequency range. In most lots, there are several “blanks” included, this is enough to make a copy for yourself in case of loss or a duplicate for the second keys. Radio frequency universal keys allow you to copy up to four key fobs at once, although with code compatibility everything is much more complicated – you need to know the manufacturer of the equipment of your barrier or your swing gates, the operating frequency and type of coding (for example, the CAME barrier).
Now on the main page
RFID RW/TM IDCC4305 Mini is a lightweight duplicator or in other words a copier of electronic keys for intercoms. This model will allow you to make copies of DALLAS keys and contactless RFID 125 mHz.
Available colors: black. Supports TM formats: Cyfral, Metakom, Dallas, KT-01 (three-pin); 125 kHz: Urmet, EM-Marin, HID26, HID34, HID37, Indala, Electra, PAC; 13.56 MHz: Mifare Classic, Mifare Ultralight, Tehkom (including copy-protected ones), Factorial, iCode.
Includes: cooker, key RW1990.2,cooker, keychain MF Zero,
Available colors: black. Reading and copying format keys: Cyfral, Metakom, Dallas, KT01 (square three-pin), USB-C connector, Android OS support, USB-OTG connection (iKeyBase application in the Play Market), USB charging, size 95 x 60 x 25 mm .
Available colors: white. Reading and copying format keys: Cyfral, Metakom, Dallas, EM-Marin 125 kHz, Urmet, Electra, USB-C connector, support for Android OS (iKeyBase application in PlayMarket) and Windows, MacOS, Linux computers, size 95 x 60 x 17 mm.
Available colors: orange. SMKey duplicator is designed for programming / copying Mifare keys
KeyCopy 4 set “Master Pro” – a complete set for the business of copying non-contact and contact intercom keys. As well as a step-by-step strategy for earning, consultations from the company “Intercom Service” and promotional materials.
Keymaster PRO 3 RF duplicator copies contactless (RFID) tag keys and contact keys (Touch Memory specifications) of various formats: DALLAS (Dallas), CYFRAL (Cifral), TM2002 (Metacom). The device has the ability to update the firmware via a computer / Internet to add newly emerging key formats and new functions.
Set for copying “Master Universal” – a set for creating electronic intercom keys of a wide profile, contact and non-contact type of Dallas, EM-Marin and Cyfral standards. A good investment in the maintenance of intercom systems.
RFID duplicator RW IDCC4305 Mini contactless intercom keys and RFID access cards
The “RFID Master” kit will allow you to copy key fobs of the popular radio frequency identification technology, which has found application in various fields of activity.
Computer-connected NFC reader for reading and writing cards, key fobs and other 13.56 MHz RFID blanks. Supports not only MIFARE and ISO 14443 A and B cards, but also all four types of NFC tags. It is possible to write and read both original Mifare tags and work with Mifare Zero blanks. It is also possible to work with Mifare Ultralight (Mifare UL) tags (when using additional software with a dongle)
Mifare Master Electronic Key Copying Kit is a professional upgradeable kit for creating an access control system and effectively managing it by copying opening codes to Mifare standard cards and key fobs, as well as assigning additional functions.
A key with a program that allows you to copy Mifare Classic marks on a Mifare zero workpiece and Mifare Ultralight marks on a Mifare UL workpiece
Duplicator with full function of decoding smart cards and RFID NFC keyfobs
Available colors: white. Support for many different formats of RFID tags with frequencies of 125 kHz and 13.56 MHz, the ability to restore crypto keys to Mifare tags (one known key), two antennas at 125 kHz and 13.56 MHz located on the board.
Power supply – Krona element, 9 V, size: 85x50x21 mm.
Available colors: black. The magnetic key has 5 rows, sometimes 6 rows of dots with different magnetic polarity, the ability to update firmware versions, a built-in lithium-ion battery.
Available colors: White. The Proxmark 3 duplicator is a very light and compact Rfid device with two antennas on the board (125 kHz / 3.56 MHz). Can be used as an emulator and sniffer.
“Magic Chinese card” duplicator is used to recover crypto-keys by obtaining information from the “Mifare” reader. This card is not connected to “Iron Logic CP Z 2MF” and “key fob” readers.
Keymaster PRO 4RF professional duplicator copies contactless (RFID) key tags and contact keys (Touch Memory specifications). The device has the ability to update the firmware via a computer / Internet to add newly emerging key formats and new functions.
https://youtube.com/watch?v=7Pjt-hR6U7c%3Fever%3D1
The key is an integral part of the intercom system. Only with it is possible the normal functioning of the system as a whole. Keys, duplicators (blanks) work according to a certain scheme, and without their participation or with the help of a key from another intercom, it will not work out.
How does it work? Initially, manufacturers of intercom systems (whose components are a calling panel, handset and code keys) assign a code to each key. This code is not like any other, is the only one of its kind. And when the intercom is installed, all the keys provided in the list are stored in its memory. The master installer configures the new intercom to record keys by entering a special combination on the call panel. During this time, the intercom does not read the code from the key, as it usually does, but remembers the codes of the keys, which must be brought to it in turn. Upon completion of the operation, the intercom is completely ready for use, it works exclusively with key codes that have been stored in memory.
But with everyone there are situations when the key is not at hand: lost, broken, sometimes during installation they give out an insufficient number of keys. For a long time this problem has not been solved directly through the installers. Keys are sold in many specialist shops. Since it is very profitable to make duplicates due to the number of intercoms, many workshops have appeared where they make copies of intercom keys, as well as key suppliers, shops where you can buy intercom keys both wholesale and retail.
Our site has a large selection of intercom keys: there are keys of different types, different shapes, different designs, in general, for every taste!
- contact;
- contactless;
- universal;
- standard;
- with an unusual design, for children;
“Intercom Service” offers RFID keys, which are in great demand now, as well as RW, TM, KC, etc. We also have universal keys, or, as they are also called, “all-terrain vehicles”. According to the name, you can take them with you anywhere, these keys are suitable for intercoms from different companies. On the territory of Moscow, they are relevant everywhere. But such a key will work only outside the CAO.
It is very easy to order universal keys, contact and contactless on our website! Select the required key, go to the card and place an order in a couple of clicks. Note that the prices on STARNEW. RU, an order of magnitude lower than on the sites of other intercom services. We are also responsible for the quality of everything you see in the catalog.
Intercom keys Moscow
Sergey: Make a key to the intercom
I will do it professionally:
– DOORPHONE KEYS (ANY)
– MAGNETIC CARDS (Electronic passes)
If you didn’t get a duplicate in the workshop, I’ll do it 100%.
CONDITIONS:
►I’ll come today!
►Prices are lower than competitors!
►1 year warranty!
►No weekends and holidays
►A copy is made in front of you within 10 minutes
+7 989 300-xx-xx
Peter: I will make a key to the intercom
To make a key for an intercom with a departure around Moscow within two to three hours is for us, only proven key blanks allow us to give a one-year guarantee for the keys.
+7 925 025-xx-xx
ALLA: DOORPHONE KEYS
WE MANUFACTURE ALL TYPES OF DOORPHONE KEYS INCLUDING MI HEADLIGHTS AND UNIVERSAL KEYS
+7 903 517-xx-xx,
George: Workshop
Installation Eyelets , Buttons , Denim Buttons , Blocks ,
Covering buttons with leather fabric.
Replacement of batteries AND straps in watch remotes.
Repair of shoes, bags.
Installation of metal fittings.
+7 929 555-xx-xx,
Moscow, m. Pervomaiskaya
Making keys of varying complexity. Encoding of intercom keys, cards, key fobs. Sale of larvae, padlocks.
+7 926 268-xx-xx
Al: Keys. Production of keys of all types, urgent.
Making all kinds of keys. By lock, by key. Apartment, garage, safe, furniture, mail, for blinds, for intercoms, electronic keys (cards)
Apartment,
garage,
safe,
furniture,
postal,
for blinds,
for intercoms,
electronic keys (cards) for access control systems,
for ATMs, vending machines,
booths,
cells,
car keys, including transponder keys (for cars with standard immobilizer),
production of chips for installation of alarms with remote start and warm-up,
replacement of car key cases,
production of car keys with remote door opening,
car SMART keys, SMART cards
m.
+7 926 734-xx-xx, Workshop for sharpening and making keys “Master Key”
Andrey: Making keys for intercom
Production of keys for intercom from 100 rubles. m. Domodedovskaya.
+7 965 382-xx-xx,
Timur: Making Keys
– making a key for the intercom – —————————————————————————- – changing the battery in the remote control – ———————— —————————————————- – key case replacement – —————————————————————————- – replacement.
+7 926 282-xx-xx, Timur
Keys: Key recovery
+7 926 111-xx-xx, Keys
David: Golden Anchor Workshop
Moscow, m. Timiryazevskaya
+7 926 344-xx-xx
necessary things_shop: Production of intercom keys and key cards
+7 916 829-xx-xx, necessary things_shop
Alexander: Shoe repair and keys in Novokosino
+7 915 450-xx-xx, Alexander
Moscow, m. Shchelkovskaya
Production of intercom keys, departure to the client, production on site from a sample, discount system. 1 key -200 rub. , 3 keys – 550 rubles. , 5 keys – 850 rubles. , 10 keys -1600 rub.
Al: Making keys, chip car keys
Moscow, m. Semenovskaya
House of life “Falcon Mountain” – Production of keys of all types: – for apartments – for safes – for intercoms – for cars – chip keys for cars with an immobilizer – for garages
German Quality: Making keys, changing batteries
+7 916 604-xx-xx, German Quality
Everyone has intercom keys in their pockets. We understand how they work and whether they can be demagnetized, and whether there is one key for all doors.
Types of keys for intercoms
There are several families of intercom keys.
1. “Pills”. Officially, the standard is called Touch memory (TM) or iButton, these are contact keys in a MicroCAN package. Tablets use the 1-Wire protocol, but the formats are different.
In the Russian Federation, these are mainly Dallas model keys, with which Vizit, Eltis, Z-5R, S2000-2, etc. intercoms work, Cyfral (DC2000A and Tsifral-KP1 keys, etc.), Metakom .
Resistive “pills” are quite rare – they have resistance readings.
2. “Droplets”. R FID tags in a round, oval or drop-shaped plastic case. Sometimes they are issued in the form of bracelets or cards.
Inside there is an RFID tag, as in subway cards, tweeters on goods in supermarkets and other similar things. Basically, “droplets” can be short-range (Proximity, read at a distance of up to 10-15 cm), since more “long-range” Vicinity tags that work at a distance of up to 1 m are not safe in this case.
In Russia, EM-Marin Proximity keys are most often used, but there are also older HID tags or newer MiFare tags, as in metro maps.
3. Optical. Real dinosaurs. Somewhere in the provinces are still preserved. Such a key is a metal plate in which holes are drilled in a certain order.
There is a photocell inside the intercom that recognizes whether the holes are drilled in the right order.
Security is below the baseboard, forging a key is a trifling matter, and some intercoms with optical keys were successfully opened with a nail file without traces.
How does the intercom determine if the key is suitable?
At the factory or at the company that installs intercoms, a special code is written into each key. Then it is stored in the intercom memory.
When you bring the key to the intercom, it reads the code and compares it with the values from its memory. If the value of the key is there, the door opens.
By the way, you can open several intercoms with one key. You just need to register the code of this key in all the necessary intercoms. It is clear that intercoms must be compatible with the key.
Moreover, there are special modules that allow you to save all the keys from one intercom and transfer them to another.
This is how they will reinstall the intercom in your entrance, and you won’t have to change the keys. Although, of course, the intercom installer may well try to make money on this.
The only exception, perhaps, are MiFare keys. They include a writable memory area into which a unique intercom code is copied.
When the shop master clones such a key, he only copies the factory code, but not the intercom code. As a result, the intercom may reject such a key – the anti-clone system will work. Only a service company can copy the factory code.
How do you make a copy of a key?
Usually for this they take a blank – an empty blank without a code. Then the master reads the code from your key and writes it to the blank.
As a result, you get two identical keys. And since the code of the original key is already stored in the intercom, its clone will also allow you to open the door.
Discs can be rewritable and non-rewritable. If you remember the word “finalization” when burning discs, take a pie from the shelf, then it also applies here.
Technically, you can assemble a duplicator (programmer) of keys yourself based on Arduino or Raspberry Pi, and then make copies of the key for all occasions. There are plenty of instructions on the Internet, as well as offers to buy a duplicator for a thousand or two rubles.
The main thing is not to miss the type of intercom and key.
So, some keys are designed for a frequency of 125 kHz, others for 13.56 MHz, and so on. In addition, they can be of different types. Be aware of the anti-clone protection that your intercom may support.
Can the keys become demagnetized?
It happens that you carry a “pill” or “droplet” in your pocket, and after a while it bam! – and stopped working. And such nonsense every month. Something is wrong here. “Probably demagnetized” is the most popular explanation.
In fact, such keys are not demagnetized. There is not even a magnet in them, and ordinary magnets are not afraid of keys.
It’s more about the banal lack of contact. Blanks are cheap, they are bought in China in bulk for a few cents apiece, so the contact may well go away, for example.
Key cases are usually not sealed. So if the key gets wet in your pocket or is often in a humid environment, it will not last long.
Theoretically, keys can be “killed” by electromagnetic radiation or a strong electrical impulse.
For example, if you put the key in the microwave and turn it on at full power or put it in the socket, it will stop working. But a powerful neodymium magnet, like those used in the store to remove marks, the key is unlikely to hurt.
Static electricity is also not good for keys. If you carry a pill in your back pocket and squat a lot, causing the synthetic fabric to rub against the key, it won’t last long either.
Finally, from frequent use, the “tablet” can simply push in the opposite direction and stop contacting the intercom. Just push it back in and you’ll be fine.
What is a master key and where can I get it?
After installing the intercom, the specialist has a special key. It might even have something like “Master Key. Don’t give it to anyone.”
But this key usually cannot open the door by itself. It is needed to add new keys to memory. In the intercom, the master key code is stored in a special area so that the device can recognize it and respond accordingly.
Of course, mere mortals are not given a master key. Otherwise, the service company would not be able to charge money for adding records of new keys to the intercom.
But a situation is possible when the master key fits several intercoms. Or when for some intercoms a “tablet” is a master key, and for others it is a regular key that opens the door.
Here everything depends not on the key, but on what records are in the intercom’s memory.
What happens if the master key is lost?
Usually, it is possible to register a new master key in intercoms. This is of course a potential hack. But, speaking objectively, it’s easier to get into the entrance, posing as a plumber, than to break into something.
It’s more interesting to have a universal key, or “all-terrain vehicle”. Its code is registered in all intercoms of entrances of one house or yard.
“ATVs” are made for postmen, public utilities, craftsmen, etc. Agree, this is much more convenient than carrying around a garland of different keys.
Also, some RFID keys of the new format, for example, RF3.1, allow you to write codes for up to 8 intercoms.
Often intercoms also support blocking keys. This is a security feature: after the door is opened with the blocking key, other keys do not work, and the door is blocked. Either the master key or the blocking key can unlock the lock (it all depends on the intercom settings).
By the way, it happens that the key is set blocking by mistake. So if after you neighbors often cannot get into the entrance, check if your key is blocking access.
Is it possible to fool the intercom?
Yes, now you can buy an emulator that simulates keys of different types and gives the right value for each intercom. The emulators even have displays and a keyboard installed, which allows you to select the desired key and display its name.
The thing is funny, it costs about 10 thousand rubles. But it does not work without problems – it bypasses not all protection, sometimes it may not work.
And yes, she will not hack the intercom by herself, she will only pretend to be a copy of the desired key. To program it, you will still need the keys themselves, which are already known by the intercom, and a duplicator device.
You can often hear that the intercom can be disabled with a stun gun. Yes, thin electronics really will not endure a serious charge. A mechanical shock 10-15 cm below the intercom panel has the same consequences. But this is damage to property and an article of the Criminal Code of the Russian Federation.
Theoretically, you can still strongly pull the door towards yourself. But to overcome the force with which the magnet holds the second part of the lock, remarkable power is required.
Some intercoms on a key-“tablet” basis can be opened using a “crown” battery. The method is humane and safe for the intercom, but rarely works.