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Professional Technical Surveillance Counter Measures

Designed to counter the latest advances in eavesdropping devices, the HSS- M3 is able to search and locate active transmissions and also is the only product on the market which can identify the type of signal being transmitted.

Robustly designed for a variety of applications, the HSS- M3 can be used for desk top or mobile application.  Developed with a touch screen display specifically for ease of use by users, of all technical ability.  The result is total peace of mind that your confidential information will be 100% secure.

The HSS- M3 is available with a range of optional accessories including Cable Checker – Provides rapid ability to check for active illicit transmitters on wide range of cable types. 30GHz Antenna – Provides the ability to receive signals from 10GHz up to 30GHz using their existing HSS- M3 unit.



  • Can be used remotely via Ethernet connection to PC

  • Multi-lingual help facility for international use

  • Wide frequency range up to 10 GHz (Advanced System)

  • Dedicated detection for worldwide mobile phone communication bands.

  • Fast scan rate covers the whole spectrum in 0.5 seconds to detect even fast burst transmissions

  • Filtered detector channels increase the system’s performance

  • Displays range from simple on-screen warning to complex spectrum analysis making it suitable for every level of operator.

  • PC analysis software allows scan data to be stored and converted into sweep reports

  • Robust, light and ergonomically designed.

  • Modular system (Cable Checker and 30GHz Antenna)


The HSS- M3 is a practical and adaptable counter surveillance tool which can be used to meet a range of operational requirements.

  • Protection of meeting rooms against the threat posed by hidden surveillance devices

  • Suitable for desk mounted or hand-held use

  • To identify a wide range of transmission signals including GSM, DECT, WIFI, Bluetooth, 3G, UMTS and Video

  • Real time signal analysis allows fast reaction to identified threats

Technical Specificatons


Harmonic Receiver

Frequency rangeNear DC to 10GHz in 4 bands
(Basic & Advanced System)
Band 0:12.8MHz to 2500MHz, Band 1: 2500MHz to 5000MHz
(Advanced System only)
Band 2: 5000MHz to 7500MHz, Band 3: 7500MHz to 10000MHzSensitivity:
Dynamic range:Better than -50dBm
Better than 50dB


Broadband Detector (Advanced System only)

Frequency range:
Dynamic range:10MHz to 10GHz
Better than -50dBm
Better than 50dB


ISM Band Detectors (Advanced System only)

Frequency range:
Dynamic range:2.4GHz & 5.8GHz bands
Better than -50dBm
Better than 50dB


3G, GSM Detectors (Advanced System only)

Frequency range:
Dynamic range:Various worldwide bands
Better than -50dBm
Better than 50dB


MMI Display:

Screen update:TFT 640 x 480 VGA LCD
2 x per second in surveillance mode, 5 x per second in locate mode



Main unit size: 270mm x 170mm x 80mm (W x D x H)
Main unit weight: 2.1kg
Antenna size: 260mm x 165mm x 60mm (W x D x H)
Antenna weight: 0.9kg
Environmental Operating temperature: +5degC to +35degC,

benign office environmentConnectivity(Basic System)
USB for software upgrades
(Advanced System only)
USB for software upgrades, Ethernet interface


Battery Life

Battery operation: External PSU:Basic unit minimum of 4 hours on internal battery
External PSU 12v DC @ 4A, reverse polarity, overvoltage and over current protected



EU:EN300 440.1, EN301 489-3

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