Our COSEC International division provides specialist Technical Surveillance Counter Measures (TSCM) for our commercial, corporate and private clients who may be under threat from electronic surveillance.
These measures can also be known as:
A Specialised Technical Team
Our Specialist Technical Department has extensive experience in the following areas:
Experience in all these areas is vital when conducting physical and electronics counter surveillance sweeps.

High Tech Electronics Counter Surveillance Equipment
Our team has all the latest advanced professional passive and electronics counter surveillance equipment, enabling us to search for, and locate surveillance devices or 'bugs'.
These security sweeps include searching for and locating:
These thorough sweeps cover serious professional bugs and not just ‘domestic' transmitters that are readily available.
Non Linear Junction Detectors (NLJDs)
Non Linear Junction Detectors (NLJDs) increase the quality of our searches and give the team a facility to find dormant transmitters i.e. remotely switched bugs, even when they are switched off.
Our thermal imaging systems greatly increase the chances of finding hidden transmitters behind walls and under floors.
Top Quality Reports and Protection Service
COSEC International provides comprehensive reports of the electronics counter surveillance and physical sweep.
In order to maintain a high level of protection, most of our commercial, corporate and high profile domestic clients decide to sign a contract with us to benefit from at least six visits scheduled throughout the year.
Get In Touch With Us
For more information on our electronics counter surveillance measures and debugging, please call us direct from a secure line on: +44 (0)8450 21 22 21
Sound testing
Acoustic design
Noise assessments
Electronic sweeps
Air testing
Head Office
Acoustic Surveillance and Testing Ltd
3A Sparrows Way
Lakesview International Business Park
Hersden, Canterbury
CT3 4JH
Tel: +44 (0)8450 21 22 21
Mon - Fri 9.00am - 5.00pm
COSEC International (Our Technical Surveillance Counter Measures Department) offer a 24 hour service, so we can work when your business is closed.