About us

JSC "Selcom Security" was founded to export products made by well-known manufacturers of equipment for Technical Surveillance Counter Measures. 
JSC "Selcom Security" offers a wide range of professional products:
  • Non-linear junction detectors, Wireline analizers, RF bug and wiretap detectors, multifunctional sweeping devices, hidden camera detectors etc.;
  • Cellular jammers, noise generators, voice recorders suppressors;
  • Counter terrorism and physical inspection facilities;
  • Software & hardware systems SELENA for multi-channel audio & call logging and automatic voice notification;
Our products are based on state-of-the-art digital technologies, nonstandard engineering solutions, and a certain selection of components. JSC "Selcom Security" is able to provide portable counter surveillance equipment that has been specifically developed to counter a particular type of threat, giving the highest levels of detection and protection from any unauthorised surveillance. Distinctive features of the products are: small size, simplicity in application, superior performance and utility. Our NATO Commercial And Government Entity (NCAGE) code is 010KR.
apie mus radaras

TSCM Products

  • counter espionage devices

    Counter espionage devices

  • data leakage channels detection

    Data leakage channels detection

  • counter terrorism facilities

    Counter terrorism facilities

  • multichannel audio logging

    Multi-channel audio logging systems


  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9

Special Offer for ST-300 SPIDER !

For a more deeper acquaintance with our new device ST-300 SPIDER, Selcom Security JSC is ready to provide a special discount of -10% for the first purchase. This offer is valid until 1st of December 2016. Presentational videos of ST-300 SPIDER here . 

Read more

Results of Security Essen 2016

On 27-30th of September, 2016, JSC Selcom Security successfully attended International Security Exhibition Security Essen 2016. We would like to say Thank You to exhibition organisers and to our stand visitors, who brought many creative interactions and ideas. We hope for a successful future cooperation ! Moments at the exhibition...

Read more

Results of SeguriExpoEcuador 2016

On 21st-23d of September 2016, our partner in South America Winsys Security C.A. successfully attended International Security Exhibition SeguriExpoEcuador 2016 in Guayaquil, Ecuador. We would like to say Thank You to our partner, exhibition organisers and to stand visitors ! Moments at the exhibition here.

Read more

Special Offer for ST-400 CAYMAN

Selcom Security JSC announces a special offer for ST-400 "Cayman". When purchasing Non-linear junction detector ST-400 "Cayman" we will provide Optical Camera Detector Vizir-M - as a valued gift. + *Special offer is valid only for 10 sets and valid until the end of exhibition Security Essen 2016, until October 1st.

Read more

Invitation to SeguriExpoEcuador 2016

On 21th-23th of September our partner in Latin America WINSYS SECURITY will participate in International Security Exhibition SeguriExpoEcuador 2016 in Guayaquil, Ecuador, where they will present our equipment for information protection and many other devices of the security industry. We kindly invite you to visit their stand!Their location: Central Hall....

Read more

Test Results of "NR" Series Detectors

Based on the request from the manufacturer of NR-900EK EAGLE, NR-2000 and NR-12C, HCR-CTRO conducted the tests at the test-site in Croatia during May 2016. The tests were carried out in accordance with the Test plan and programme elaborated by HCR-CTRO, based on the methodology derived by HCR-CTRO, and in...

Read more

SEL SP-71R Raksa Operating Recomendations

SEL SP-71R Raksa Operating Recomendations.

Read more

NLJD ST-402 CAYMAN Released !

We would like to present You ST-402 CAYMAN - a newly released NLJD series CAYMAN. More information about this NLJD you can find by pressing here.

Read more

Increased ST-031M "Piranha" Capabilities

ST-031M”Piranha” (Combined Set) Low frequency antenna  Advantages: * Detection of devices in STAND BY mode, based on electromagnetic tact impulses. * Detection of devices (microphones, GSM transmitters) behind partially or fully screened surfaces. * Detection of devices, which currently don’t have a transmission channel(audio recorders in metal casing). To see the capabilities of the...

Read more

NCAGE Code Alocation

We would like to inform You that Selcom Security JSC recently were allocated with a NATO Commercial And Government Entity (NCAGE) code 010KR, which will allow us to work more effectively. NCAGE code: 010KRhttps://eportal.nspa.nato.int/AC135Public/scage/CageList.aspx   

Read more

Invitation to SECUREX 2016

Selcom Security JSC would like to invite all our Colleagues and Partners to visit our stand at the International Security Exhibition SECUREX 2016 in Poznan, Poland on 25th-28th of April, 2016. There we will present the latest TSCM equipment from our range of products.              ...

Read more

Results of the Training Seminar 2016

From 2d to 4th of March, JSC Selcom Security organized a training seminar in Klaipeda, Lithuania. A lot of professionals from different companies and from different countries gained valuable experience from practical training of acquaintance with following products: - ST-402 "CAYMAN" - ST-403 ”CAYMAN” - ST-300 - ST-031M ”PIRANHA” We would like to thank all...

Read more

Training Seminar. Registration open!

On 2nd-4th of March 2016, "Selcom Security" JSC is organising an  annual open Training Seminar about practical use of the unique and having no analogues in the world: Wireline Analizer ST-300, detectors series "CAYMAN", multifunctional operative RF search device ST-031M "Piranha" and appropreate  methodology of practical use.There will be relevant certificates issued  for the seminar participants.Please find the preliminary plan of the training seminar, directions to Klaipeda city...

Read more

Seasons Greetings

Dear Colleagues and Partners,This Year was special thanks to You all.It was a pleasure collaborating with You. Special thanks to our colleagues, who supported us at International Exhibitions in Essen, Poznan and Paris.Communication with You gives us strength for continuing our cause.We wish You all the best in the upcoming...

Read more

Invitation to Training Seminar 2016

On 2nd-4th of March 2016, "Selcom Security" JSC is organising an annual open Training Seminar about practical use of the new devices series "ST". Please find the preliminary plan of the training seminar here. For more more information please contact us at info@selcomsecurity.com

Read more

Results of Milipol Paris 2015

On 17-20 of November, 2015 JSC Selcom Security successfully attended International Security Exhibition Milipol Paris 2015. We would like to say Thank You to exhibition organisers and to our stand visitors, who brought many creative interactions and ideas. We hope for a successful future cooperation !

Read more

Milipol 2015

Selsom Security JSC will be exhibiting at the International Security Exhibition Milipol 2015 in Paris, France from 17th-20th November 2015. At this exhibition our company will present: • ST-300 - principally new wire lines analyzer. • INFRATORNADO - new jammer of listening microphones and audio recorders. • ST-402 CAYMAN - New model of...

Read more

Principles of Non-linear Junction Detection

The principles of nonlinear detection and its application in the modern security systems. Read more... The list of NLJDs: • ST-400"CAYMAN" • ST-401"CAYMAN" • Lornet-0836 • Lornet-36 • Lornet-36 mini • Lornet-24 • Lornet Star • Lornet • Katran-Lux • NR-900EMS • NR-2000 • NR-900S  • NR-900EK "Eagle" • NR-900V "Vector" • NR-T • NR-CHP  

Read more

Video Presentation of SEL SP-157

 JSC Selcom Security would like to present you a new video of Acoustic and Vibroacoustic Protection System SEL SP-157. Watch video here  Visit us at Milipol Paris 2015, stand No 5D 141 !  

Read more

Practical Solutions for Information Protection II

We would like to visually show you the difference between unprotected and protected radio channel from information leakage. Protection is done by Portative Radio Noise Generator Shtora-4M.                                     Without Shtora-4M                         ...

Read more

Pilot-M Offer !

JSC Selcom Security would like to offer You a compact and effectivedetector of explosive material Pilot-M. More information here.

Read more

New Video of NLJD ST-400 "CAYMAN"

JSC Selcom Security would like to present you a new video of principally new Non-linear junction detector ST-400 CAYMAN. Watch video here  Visit us at Milipol Paris 2015, stand No 5D 141 !  

Read more

Milipol 2015

Selcom Security JSC will be exhibiting at the International Security Exhibition Milipol 2015 in Paris, France from 17-20 November 2015. At this exhibition our company will present: ST-300 - principally new wire lines analyzer. ST-402 - New model of non linear junction detector from CAYMAN series. And over 14 models of non linear junction...

Read more

Special Offer for Series Cayman, Piranha

For a more deeper acquaintance with our devices ST-400 Cayman, ST-401 Cayman and ST-031M “Piranha“, Selcom Security JSC is ready to offer the above mentioned devices with a discount of -10%. This offer is valid until 14th of August 2015.

Read more

Practical Solutions for Information Protection

We would like to visually show you the differences between unprotected and protected 220 V electric circuit from information leakage. Protection is done by Active Electric Circuit Noise Generator SEL SP-44.                                     Without SEL SP-44  ...

Read more

ST-062 New Batch Release

We are glad to inform You that, according to customers demand, a batch of cellular detectors ST-062 was released and are available for quick delivery. *ST-062 allows operator to clearly distinguish the safe signals of base stations from potentially dangerous signals of mobile devices.

Read more

SEL SP-71R Raksa Language Interface

We are glad to announce that SEL SP-71R ”Raksa”  received Language Interface update. English  French  German  Italian  Russian Spanish                                                 We can also offer to add required language interface if the order starts from 20 units.

Read more


  • Frequently Asked Questions

    • Question: When making the special negotiations room, we encountered a problem of placement of transducers on walls.  How to properly place them?
    • Answer: Installing of vibro transducers: All vibro transducers must be installed on the proper mounts provided by the vendor. It must be taken in to consideration that before conducting such operation, the client must inform how many mounts and what kind, he needs.
      For walls- special nails
      For windows- discs
      For heater- special holder
      Constructively every channel has 2 parallel connections. That create a single channel load.
      One channel can hold out up to 32 vibro transducers.
    • Question: Can I use the acoustic emitter of SEL SP-157 for protection of false ceilings.
    • Answer: Yes, the SEL SP-157AS can be used for  protection of false ceilings , air shafts and ventilation systems.
    • Question: When we place and hold our finger on the device RECARDER the contact group, the LED indicator will flash, but sometimes not. How to fix this problem?
    • Answer: If no LED indicators turn on, it can mean this:
    • 1) LED indication is disabled in Recorder settings menu.
    • 2) If the VAS is enabled, chosen acoustic level is not enough to start the recording.
    • 3) The device is out-of-service or its battery is fully discharged.
    • 4) Timer recording mode is activated.
    • Question: Is there a way to check if the professional audio recorder RECARDER is on or off?
    • Answer: To check current operation mode of the device, press and hold a finger on the contact group. If the LED flashes in intervals then the device is recording. If the LED is on constantly and not flashing then the device is ready to start working.
    • Answer: The selective cellular jammer ST-202 “UDAV-M“ operates at following frequencies: GSM-900 – (925 – 960), GSM 1800 + DECT – (1805 – 1900), 3G-1 – (2010-2025), 3G-2 – (2110 – 2170), Wf/BT – (2400 – 2484), 4G – (2500-2700), CDMA 450 – (463-468), LTE 800 – (832-862).
    • Question: How long does it take for SEL SP-71R "Raksa" to detect a surveillance device?
    • Answer: Depends on the experience of the operator. Scanning and analysing cycle period is 1.0 – 1.5 sec. And filtration of short term noise requires at least 2-3 sec.
    • Answer: Currently SEL SP-71R "Raksa" can detect following standards: GSM850/ 900E/ 1800/ 1900, UMTS 850/900/1800/1900/ 2100, CDMA 450 (A-H)/800/1900. Also cordless DECT telephones, Bluetooth and Wi-Fi devices.
    • Question: Can RECARDER be activated by voice? F.E: when someone starts speaking.
    • Answer: Professional Audio recorder RECARDER has built in Voice Activation system , which can be adjusted in the setup menu of the software.
    • Question: Can the quality of the recording for the device RECARDER be regulated?
    • Answer: The audio can be recorded in three different qualities: 8kHz/ 16kHz /24kHz
      8 kHz – 36/144 hrs
      16 kHz – 18/72 hrs
      24 kHz – 12/48 hrs

    • Question: What is the battery life of the Professional Audio Recorder RECARDER ?
    • Answer: The battery life of RECARDER is up to 24 hours in record mode and up to 1500 hours in standby mode.
    • Question: Are there any labels on the RECARDER, or it comes simply in white?
    • Answer: The device RECARDER  is produced without any labels or signs (white). The client puts his own label, on his own sole discretion.
    • Answer: NLJD "NR-900 EMS" is an impulse emission type NLJD, with the output power not less than 150 Wt, detector "Katran-Lux" is a continuous emission type NLJD, With the output not less than 1,5Wt. "ST-400 “Cayman“ on the other hand is a principally new NLJD, that emits several frequencies at the same time , 2-3GHz frequency range and the output power of such device is only 2Wt. Impulse type NLJD has a high piercing ability, are less comfortable for detection of corrosional diodes. Impulse NLJD are most effective in empty premises, continuous NLJDs can be used due to its output power corrections can be used near electronic appliances. NLJD "Кatran-Lux" has automatic setup function (in its‘ working diapason) to the frequency,on the second harmonica which has minimum interferences., which is very important when working in cities with developed systems of cell phone networks of diapasons 900/1800 MHz.
    • Question: What is better for protection the power mains: noise generators or network filters ?
    • Answer: Network interference suppressing filters e.g., FSP-1F-7A provides lowering the levels in working diapason from 0,1 – 1000 MHz not less than for 60 Db and protects not only from information  but also protects means of office equipment from outside interferences. But for effective work it is necessary to have a grounding system (but not zeroing), where their absence significantly lowers the effectiveness. So in most situations it is more reasonable to use noise generators, for example: SEL SP-44, which does not need grounding and  enabling suppression of  non-sanctioned information gathering devices.
    • Question: Do I need any special permissions for exploitation and acquiring to search devices (For Example: ST-031M “Piranha“ )?
    • Answer: The described search equipment  does not require permissions for acquiring and exploitation, because they are technical means of effectivity control of means of information protection through leakage through technical channels and is not a mean of  illegal information gathering, and are not special technical means used in the operational-search activity.
    • Question: Hello! Please suggest how to protect from hidden video cameras!
    • Answer: At present moment the most effective way of protection from non-sanctioned video recording is detection of video cameras. Because, the disruption of the work of wireless video cameras using radio channel can be done by using special generators of electromagnetic noise, but it is hard to influence wired cameras. You can get acquainted to the hidden cameras detectors offered by our company HERE. Devices "Optic-2", "Hubble" work according to optical detection principle , and a new device SEL SP-102 "Arcam" detects video cameras, is based on analysis of electromagnetic spectrum for presence of emissions, which are similar only for mini video cameras which does not transmit information through radio channel.
    • Question: Hello, please share, what does the categories mean (different from each other) of the marked premises when testing objects of informatisation.
    • Answer: Marked Premises (MP) – are premises (offices, concert halls, conference rooms and so on.), specially designed for holding closed events (office meetings, discussions, conferences, and negotiations and so on.) regarding questions , that are classified as government secrets, also premises that are equipped with government links or other types of special equipment. The category of marked premises is set according to the secrecy and exploitation for these premises.
      The premises of the First category- are premises, especially designed for holding meetings with high priority priority or secrecy, also companies, firms, and facilities where such questions can be negotiated.
      The premises of the second category- are premises, especially designed for holding meetings of high priority and at which top Secret information is being shared.also cabinets of   institution governing offices,and its‘ main subsections in which such questions can be discussed and Secret information can be shared.
      The premises of the third category- are special premises and Office rooms of the subsections of the facility , in which negotiations and discussions where Secret information is being shared , are being held. Also conference rooms which hold mass meetings and which sometimes hold closed event.
    • Question: Please help,in my car SEL SP-71R "Raksa" gives out  Analog 30-40-50 and more db. Can a tracking device, radio microphone or a bug be concealed in a car?
    • Answer: Such a situation is possible when there is a wireless video camera (e.g. back-view camera). Mainly, it is necessary to switch the search indicator to SEARCH MODE and move it inside and outside of the car, to find the place, where the level of signal be at maximum. The possible source of the signal can be any radio transmitting device, as well as, so called "Bug".
    • Question: Hello i have a technical question regarding SEL SP-71R "Raksa" – what is the scanning length of Wi-Fi Bluetooth and 2400MHz protocols, and what is displayed if we scan Wi-Fi frequency or 2400 MHz.
    • Answer: The detection range depends from reception conditions and type of device – wi-fi and Bluetooth, depending from class, work with different output power. Typical range for Bluetooth 1-3m. For Wi-Fi – 2-10 m. If the Exchange protocol is identified, then on the SEL SP-71R "Raksa" display usually this type is shown (wi-fi or Bluetooth). If not identified then only diapason is shown as 2.4 GHz
    • Question: Please tell, how to find a Digital „bug" in a car using SEL SP-71R "Raksa". When measuring levels we often see fluctuations, that is, in the same place ever 3-4 seconds at completely different levels. Detection places are the same- 3 spots. Should we draw a map and according to it we should calculate ,on the basis of the parabplic emission? 
    • Answer: First, make sure that the sourse of radioemission is in the car, and not outside of it(the signals of stationary sourses such as Wi-Fi hotspots, radio modems, base stations of mobile networks and others). The corret thing to do, is to conduct investigation at a different location of the car, better to furthen from such stationary origins.For exhample outside town. If the same signals in the same place are present, then possibly there is a bug. That means the in the described situation there could be a presence of a bug- it can give out different levels. The can applied to the outside signal from outside the car.
    • Question: Our company successfully used ST-031M "Piranha" for 2 year . As a result of wrong operators activity, audio input was broken. Can we repair the device by our self ? 
    • Answer: Yes, it is possible to repair this kind of malfunction locally. Please see a video prepared for you, which describes the process of repair of this kind of malfunction. Video here.
    • Question: Our company successfully used Lornet-0836 for 3 year . As a result of physical damage to the unit broke. Can this device be fixed? Photo here.
    • Answer: Yes, Selcom Security JSC is also a technical center which provides post-warranty technical services, and in some cases, we carry out repair of the equipment, which was purchased in other companies. Please send your device over for defectation, repair, readjustment.
    • Question: When we select the "Wireless Comm" screen on our ST-031M, we don't see anything...We want to re-install the firmware.. But we haven't got it...Can you send us the file for the 1.3 firmware?
    • Answer: Recently we have updated our SOFTWARE section. You can find all the necessary software there
    • Answer: ST-400 ”CAYMAN” is designed for detection and identification of devices of unsanctioned information leakage hidden in walls, furniture, etc., also, due to its’ low output power (2W) , it can be used to check people.
    • Question: What does the NLJD consist of ?
    • Answer: The structure of the nonlinear junction detector (NLJD) consists of: transmitter, receiver, transmitter-receiver antenna system, the display device.
    • Question: Do you provide warranty to your products?
    • Answer: Yes, we provide warranty for all our products, which we sell. 
    • Question: Do you provide post-warranty technical servise?
    • Answer: Yes, our company provides post-warranty service for the equipment that was purchased from us. In some cases, we carry out repair of the equipment, which was purchased in other companies.
  • For viewing instructions You can use Acrobat Reader
    pdf icon

    ST-400 "Cayman" - Non Linear Junction Detector. Owner's manual. (pdf. 3.3Mb)

    ST-401 "Cayman" - Non Linear Junction Detector. Owner's manual. Ru/En.  (pdf. 2.9Mb)

    ST-402 "Cayman" - Non Linear Junction Detector. Owner's manual. (pdf. 2.21Mb)

    ST-403 "Cayman" - Non Linear Junction Detector. Owner's manual. (pdf. 2.31Mb)

    SEL SP-71R "Raksa" - RF detector. Owner's manual. (pdf. 354Kb) 

    ST-031M "Piranha" -  multipurpose search device. Owner's manual. (pdf. 1.81Mb)

    ST-031M "Piranha" -  multipurpose search device.Full Combined Set. Owner's manual. (pdf. 3.31Mb)

    Pilot-M - explosive vapor detector. Owner's manual. (pdf. 3.55Mb)

    reCARDer - Professional Audio Recorder. Owner's manual. (pdf. 767Kb)

    Infratornado - Jammer of microphones and audio recorders. (pdf. 537Kb)

    SEL SP-157 - vibroacoustic noise system. Operating manual. (pdf. 499Kb)

    SEL SP-44 - Mains protection. Owner's manual. (pdf. 86Kb)

    SEL SP-165 "Blockade-5" - Cellular jammer. Owner's manual. (pdf. 170Kb)

    Infratornado-Owner's manual. (pdf. 1.45Mb)

    Lornet-0836 - double probing freq. NLJD. Owner's manual. (pdf. 374Kb)

    Lornet-36 - long range NLJD. Owner's manual. (pdf. 428Kb)

    Lornet - NLJD. Owner's manual. (pdf. 338Kb)

    Lornet-Star - NLJD. Owner's manual. (pdf. 534Kb)

    Katran-Lux - NLJD. Owner's manual. (pdf. 385Kb)

    SEL SP-102 "Arcam" - hidden camera detector. Owner's manual. (pdf. 552 Kb)

    Lornet-24 - NLJD. Owner's manual. (pdf. 590Kb)

    ST-202 "UDAV-M" - Cellular jammer. Owner's manual. (pdf. 519Kb)

    ST-062 - cellular phones detector. Owner's manual. (pdf. 1.83Mb)

    ST-202 "UDAV-M" methodics in operation with ST-062. (pdf. 223)

    SEL SP-162 "Batog" - cellular jammer. Owner's manual. (pdf. 97Kb)

    ST-052 - TSCM office monitoring system. Owner's manual. (pdf. 188Kb)

    NR-900EK "Eagle" - NLJD. Owner's manual. (pdf. 424Kb)

    NR-2000 - NLJD. Owner's manual. (pdf. 1.1Mb)

    NR-900EMS - NLJD. Owner's manual. (pdf. 6.07Mb)

    NR-900S - NLJD. Owner's manual. (pdf. 770Kb)

    NR-MD - Portable Metal Detector. Owner's manual. (pdf. 864Kb)

    NR-12C - Handheld control-wire-line detector. Owner's manual. (pdf. 1.85Mb)

    Anker-4E - explosive detector. Owner's manual. (pdf. 1.17Mb)

    Anker-4R - explosive detector. Owner's manual. (pdf. 1.38Mb)

    Optic-2 - optic camera detector. Owner's manual. (pdf. 203Kb)


Address: Tilzes str. 38, Klaipeda 91112, Lithuania
Phone: +370 655 08288
Fax: +370 46 412231
E-mail: info@selcomsecurity.com



                   Latin America
Company name: Winsys Security C.A. 
Website: http://winsys-selcom.com/
Phone: +58 212 5763146; +58 412 3280884