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Investigations & Surveillance International Pte Ltd

2 Jurong East St. 21
#04-A3 IMM Building
Singapore 609601
Tel: (65) 6899 8530
Fax: (65) 6899 8590
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ACRA Reg. No: 200210089D

 
Home arrow Spy Equipment & Products
Spy Equipment & Products

There are various methods of electronic surveillance concepts available in the market today and some of the eavesdropping devices that are frequently used are as follows (all of these devises may be disguised to blend into the surroundings):-

 

 

(a) Active devices:  
 
FM frequency transmitting bug
VHF frequency transmitting bug
UHF frequency transmitting bug
Stealth ear listening device
Concrete microphone
Closed circuit T.V. systems

 
(b) Passive devices:  
 
Directional microphones
Shot gun microphones
Laser listening devises
Microwave resonating cavity bug

 

(c) Telephone transmitters:  
 
Transmitter connected on series
Transmitter connected on parallel port
Line induction bugs
Infinity bug
Telephone recording device

 
(d) Video/Audio transmitters:  
  Usually video transmission is on UHF or the least on VHF frequency only. The actual device that transmits the pictures is once again disguised to blend into the surroundings without arousing suspicion. Some of the common disguises are:-
Sunglasses
Computer mouse
Briefcase
Teddy bear
Pot plant
Television set
Smoke detector
Clock
Pendant
Wall picture

 
(e) Vehicle Tracking System:  
 
Loran Tracking
Satellite based system with G.P.S
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