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Digiscan Labs
Delta S Handheld Counter Surveillance Sweeping System
10.791,00  EUR  ex VAT
13.488,75  EUR  inc VAT
Delivery in 15 days
14 day refund
24 month warranty

New Delta S is an affordable sweeping system both powerful and easy to use with a frequency range of 57-6000 MHz.

Delta S is a newly designed handheld counter surveillance sweeping system that quickly and reliably detects all types of RF surveillance devices. It discovers and locates covert devices in the frequency range up to 6 GHz including analog, digital, audio, video, working continuously or periodically, with or without encryption. 

It is a highly sensitive system that has an update time of 0.8 seconds in full range, as well as a long detection distance, exceeding the performance of typical RF detectors and near-field receivers by 10-20 times!

Delta S presents useful and practical features to ensure maximum precision, speed, and comprehensive detection when sweeping in a target area such as an office, home, vehicle, etc. The device can be quickly adjusted to the frequency allocation (mobile and wireless bands) for the country of use to get the most precise detection results. Additionally useful for accurate detection is the background masking feature which allows you to reject friendly signals such as TV, radio, etc., and fully focus on finding signals from unwanted covert devices. 

Another great advantage of the Delta S is the ability to detect RF jammers on all bands. Special warning signs warn you when a presence has been detected so you can faster locate the RF signal jammer devices. 

A great selection of working modes is featured so you are provided with a full spectral analysis of a detected signal. The search modes are:
  1. All signals
  2. Mobile/GPS trackers
  3. Wireless/ISM 
  4. Downlinks/Navigation
  5. Inspect band/signal
In comparison to the Delta X G2 models, the Delta S offers some exclusive features. 

Delta S Exclusive features:

  • Rich selection of working modes
  • Level panel displaying the RF environment in a hierarchical way
  • Inspects and locates separately Wi-Fi 2.4 GHz and Wi-Fi 5 GHz channels
  • Analyzes 3 types of Bluetooth signals
  • Detects RF jammers
  • ThreatMark feature - marks dangerous signals on spectrum
  • Automatic recognition of signals in all bands
Find here the full comparison of Delta S with Delta X G2/6 and Delta X G2/12.

The unit works with and is powered by a laptop or tablet (not provided). The convenient magnets on the device allow you to attach a laptop or tablet and walk freely while sweeping a location.

Learn more about complete counter surveillance equipment available at SpyShopEurope.com.

Delta S Main Features:

  • Frequency range 57 MHz to 6000 MHz
  • Sweeping speed of 8000 MHz per second
  • Detects all types of RF surveillance, analog/digital, working continuously/periodically, transmitting audio/video/both, with/without encryption
  • 5 search modes with two additional modes for inspection of suspicious bands or signals
  • Highly sensitive with long detection distance, exceeding conventional RF detectors and near-field receivers by 10-20 times
  • Greater inspection of Wi-Fi and Bluetooth channels
  • Adjustable frequency allocation to the country of use
  • Registers short-burst signals used by GPS trackers
  • Detects RF signal jammers
  • Background masking feature allows you to reject friendly signals such as TV, radio, etc.
  • ThreatMark feature displays dangerous signals on a spectrum graph
  • Demodulation of audio in AM/FM mode
  • Unlimited number of logs and history of events
  • Audio alarms warn you about the presence of danger
  • The attenuator simplifies location of strong transmitters
  • "Hold maximum danger" feature automatically displays the most dangerous band or signal
  • Powered from the laptop's or tablet’s USB

Delta S Full Specifications: 

Frequency range: 57-6000 MHz
Sweeping speed: 8 GHz per second
ADC resolution: 12 bit
Sensitivity: -85 dB
Dynamic range: 80 dB (with attenuator)
Displayed signal level: -90…-10 dB
Real-time bandwidth (RTBW): 27 MHz
Format: Handheld unit
Platform: SDR by Analog Device
Antenna inputs:
 - INPUT 1 – SMA, 57-2000 MHz
 - INPUT 2 – SMA, 2000-6000 MHz
Searching modes and time of update:
 - All signals (~0.8 s)
 - Mobile/GPS trackers (~0.2 s)
 - Wireless/ISM (~0.3 s)
 - Downlinks/Navigation (~0.3 s) 
 - Inspect band/signal (~0.1-0.2 s)
Visual elements (panels): Level, Spectrum + Waterfall, Alarms
Demodulation: AM and FM with bandwidth 5, 15, 30, 100, and 200 kHz (in the range 70-6000 MHz)
Demands on laptop/tablet: 
 - Intel Core i3 / AMD Ryzen 3 or better (recommended Intel Core i5 / AMD Ryzen 5),
 - 2 USB ports, one should be of SuperSpeed type (USB 3.0/3.1/3.2 or USB Type C),
 - RAM 8 Gb or more SSD 128 Gb or more,
 - Windows 8,10,11,
 - Screen size 12-14”
Powered: by USB port of laptop/tablet
Battery resource: 1-1.5 hour
Duration of work from AC: Unlimited
Displayed spectrum span: 2 - 6000 MHz
Range of working temperature: -5°C … +45°C / 23°F … 113°F
Dimensions of main unit (w/o antennas): 33.5 x 26 x 6 cm / 13.2 x 10.2 x 2.4”
Dimensions of packaging: 50 x 40 x 20 cm / 19.7 x 15.8 x 7.9”
Weight of main unit with antennas (w/o computer): 3 kg
Weight in packaging: 8.5 kg

Delta S Sweeping System Feature Focus: 

Frequency range up to 6 GHz

Delta S with the sweeping speed of 8 GHz per second, swiftly and reliably discovers all types of RF surveillance devices which use anything from GSM, 3G, 4G/LTE, Bluetooth, Wi-Fi, DECT, and others to the latest 5G technology. It will detect and locate any covert device whether they are analog or digital, sending out data continuously or periodically, transmitting video or audio or both, with or without encryption, all in the range of up to 6 GHz. The frequency allocation can be adjusted to the country of use so you receive the most accurate detection results.

5 search modes available on the Delta S

  1. In "All signals" mode, the sweeping system analyzes the spectrum in the full range of 57-6000 MHz and detects all types of signals. It detects mobile and wireless signals, as well as bugging devices, etc.
  2. In "Mobile/GPS trackers" mode, Delta S detects mobile devices of all standards that transmit information via GSM, 3G, 4G/LET, and 5G such as hidden cameras and microphones, including GPS trackers installed on vehicles that send out short-burst signals.
  3. "Wireless/ISM" mode finds wireless standards which transmit video and/or audio information via Wi-Fi, Bluetooth, LoRa, DECT, etc.
  4. "Downlinks/Navigation" search mode monitors downlink bands of mobile communication and bands of Global Navigation Satellite Systems, like GPS, GLONASS, and GALILEO, and is used to detect and locate RF jammers.
  5. "Inspect band/signal" aka "Custom" displays detailed information about separate bands in the RF environment so you can further inspect each band. 

ThreatMark feature

The ThreatMark feature marks dangerous signals on a spectrum graph so you are able to select them when they present and further inspect them. 

Detection of RF jamming

Even though RF jammers are prohibited in most of the world with a few exceptions, they can still be found, especially in countries where there are little or no criminal penalties for their use. Delta S counter-surveillance system detects can be used to discover and locate RF signal jammers on all bands. The device monitors mobile uplinks and downlinks, bands of Global Navigation Satellite System (GPS, GLONASS, GALILEO, etc.), Wi-Fi/Bluetooth, etc. to find jammers and similar anomalies. When a presence of a jamming device is near, an additional bar graph for each band and special warning sound will help in detecting and physically locating the RF signal jamming device.

Ability to register short burst signals

Registering of short-burst signals that are commonly used by bugging devices such as GSM bugs and GSM trackers, is made possible with the Delta S high-speed spectrum updating and wide real-time bandwidth (RTBW). The best search modes to use when searching for devices that use short-burst signals are the Mobile/GPS Trackers and Wireless/ISM as they reduce the measurement interval and bandwidth which then increases the speed and probability of detecting short-burst

Demodulation of audio in AM/FM mode

By using the demodulation feature, Delta S allows you to listen to analog signals such as FM radio stations or analog TV audio channels. Digital signals such as mobile or Wi-Fi cannot be heard, however, they may cause some characteristic sounds such as buzzing or crackling when in AM mode. BW is the demodulator bandwidth, selectable from 5 to 200 kHz (5, 15, 30, 100, and 200 kHz) in the range 70-6000 MHz. This function is only available when inspecting a band or signal and is automatically disabled when exiting the mode.

Detailed inspection of Wi-Fi and Bluetooth channels

One of the exclusive Delta S features is the detailed measurement and analysis of the Wi-Fi and Bluetooth channels. This sweeping system measures Wi-Fi channels in both 2.4 GHz and 5 GHz bands and allows for each channel to be inspected and located separately. Furthermore, 3 types of Bluetooth signals - Bluetooth, Bluetooth LE, and Bluetooth LE Advertising - can each be inspected and located separately.

Highly sensitive with long detection distance

The spectral analysis provides high sensitivity and a long detection distance, surpassing the conventional RF detectors and near-field receivers by 10-20 times. 

Background masking feature

The background masking feature is highly useful in sweeping operations as it allows you to reject common, everyday friendly signals such as television, radio, mobile base stations, etc., and completely focus on the objects of your sweep and discover local signals that indicate unwanted activities in the target area. The friendly, background signals are ignored with the help of spectral mask, making it impossible to, for example, hide a spy bug within the TV. 

Fully portable with a convenient magnetic system for tablet/laptop

Delta S is designed to be a fully portable unit with magnetic holders on the upper side to hold your tablet or laptop and handles on the side to comfortably hold the whole unit while giving you the freedom to walk around and sweep the entirety of the selected area. 

Easy to use, powerful device

Delta S is a powerful professional sweeping system capable of high-speed and reliable detection of hidden surveillance devices in any location and suitable for use at any TSCM level.

Supplied set:

  • Main unit - Delta S
  • USB drive with software and user manual
  • Omni-directed wideband antenna ODA-4
  • Microwave antenna MWA-6
  • Microwave antenna LPDA-12
  • Adapter USB type C – USB type A
  • Magnetic sticker for laptop or tablet
  • Carry case

Delta S Handheld Counter Surveillance Sweeping System FAQs

Can the Delta S detect RF jammers?
Yes, the Delta S can detect RF jammers across all bands. It is equipped with special warning signs that alert the user when a jamming device is detected, facilitating quicker location and identification of the source. This feature is particularly useful in environments where the use of jammers is suspected.

Does the Delta S offer any features for analyzing Wi-Fi and Bluetooth signals?
Yes, the Delta S can inspect and locate separately Wi-Fi 2.4 GHz and Wi-Fi 5 GHz channels, as well as analyze 3 types of Bluetooth signals. This capability allows for detailed measurement and analysis of Wi-Fi and Bluetooth channels, making it easier to identify and locate devices using these frequencies for surveillance.

How does the Delta S’s background masking feature work?
The background masking feature of the Delta S allows users to reject common, everyday friendly signals such as television, radio, and mobile base stations. By focusing on local signals that indicate unwanted activities, this feature helps in the more effective detection of covert surveillance devices in the target area.

How is the Delta S powered?
The Delta S is powered from a laptop’s or tablet’s USB port. This convenient power source eliminates the need for external batteries or power supplies, making the system more portable and easier to use in various locations.

How quickly does the Delta S update its detection findings?
The Delta S updates its detection findings every 0.8 seconds in full range. This high update speed ensures that even the most fleeting signals, such as those from short-burst transmitters used by GPS trackers, can be detected and located reliably. The system’s sensitivity and speed make it highly effective in counter-surveillance efforts.

Is the Delta S portable?
Yes, the Delta S is designed to be fully portable, with magnetic holders for attaching a laptop or tablet and side handles for easy carrying. This design allows users to freely walk around and sweep an entire area without being tethered to a stationary setup, making it ideal for field operations.

What are the search modes available on the Delta S?
The Delta S features five search modes: All signals, Mobile/GPS trackers, Wireless/ISM, Downlinks/Navigation, and Inspect band/signal. These modes allow for targeted detection of various types of signals, from mobile and GPS tracker signals to wireless standards and navigation downlinks, enhancing the device’s versatility and effectiveness in different sweeping scenarios.

What comes included with the Delta S system?
The supplied set includes the main unit (Delta S), a USB drive with software and user manual, an omni-directed wideband antenna (ODA-4), two microwave antennas (MWA-6 and LPDA-12), an adapter USB type C to USB type A, a magnetic sticker for laptop or tablet, and a carry case. This comprehensive set provides all the necessary components to start using the Delta S for counter-surveillance sweeping immediately.

What is the frequency range of the Delta S Handheld Counter Surveillance Sweeping System?
The Delta S operates within a frequency range of 57 MHz to 6000 MHz. This wide range allows it to detect a broad spectrum of RF surveillance devices, including those operating on GSM, 3G, 4G/LTE, and even the latest 5G technology. Its ability to adjust frequency allocation based on the country of use enhances its precision in detection.

What is the ThreatMark feature on the Delta S?
The ThreatMark feature on the Delta S marks dangerous signals on a spectrum graph, allowing users to select and further inspect these signals. This feature aids in the identification and analysis of potential threats, enhancing the device’s utility in securing an environment from surveillance devices.


For detailed info on the specifications and use of the device, please read the PDFs available for download below. 
The laptop/tablet are not included in the supplied set. 
24 Months Warranty

>>Download Delta S User Manual (PDF)<<
>>Download detailed specifications (PDF)<<


Disclaimer: Items on the website are not be used for the purpose of illegal surveillance of unsuspecting subjects. The items are to be used only in compliance with all the local laws and regulations under the threat of penalty.

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