Surveillance Spy
How Spy Gadgets Work
There is a plethora of spy gadget available in the market, more than ever before – how useful are they really?
You can find a great variety of spy gadgets in the markets today, whether they are in special stores, in toy stores and, of course, from innumerable sites on the internet. Some of them come in the form of kits which you assemble yourself, though many of them may be for children. These may range from simple night vision binoculars or eyewear to spy cams to long range transmitters to easy to use lie detectors.
Advanced technology
The technologically wired world has made spy gadgets smaller and less easily detectable. They are also easier to use and where required have a great deal of memory. Gone are the days when lemon juice was used as invisible ink to send covert messages – today secret messages are usually heavily encrypted and sent by computers or mobile phones.
Neither do you need to use a crude device to listen through walls – today many covert voice transmitters and listening devices are available. And while you may have to physically follow somebody, you can even track the person’s movements either via a transmitter or tracking device attached covertly to a car or even via satellite imagery through the computer.
And you don’t have to use a handkerchief to talk into a phone in order to disguise your voice – there are more sophisticated voice changing devices which will make your voice totally unrecognizable.
You can track computer usage as well, whether it is of members of your family or staff, using undetectable software on computers.
How do the gadgets work?
Miniaturization and computerization have helped make the covert gadgets easier to use and decreased the likelihood of detections. Micro chips, GPS, mobile phones, computer software have all made tracking and keeping tabs on a person simpler.
Most gadgets emit some sort of signal which is picked up by the decoder and then put in simpler language or pictures for a lay person to understand. In the case of surveillance cameras, many are triggered by sensors and start recording when some movement is ’sensed’.
While using audio gadgets these are usually voice activated. Security systems usually use security key pads which you have to key in. And then there is biometric or fingerprint scanning on a higher level, whether it is lock in a house, a safe or a computer.
Today, there are even gadgets which can analyze voices instantaneously and tell whether the person is telling the truth or not. Of course, none of these gadgets are infallible – even a properly regulated polygraph test by the authorities and people who are trained to use them can give erroneous results.
Why do people use spy gadgets?
Because criminals are also using technology to increase their fields of operations, because there is an increased paranoia about how ‘big brother is watching you’, because people are increasingly suspicious about their spouse’s behavior and it is easier to keep tabs on them, because people are more protective of their children, these gadgets find a ready market.
The fact that a lot of them are cheap and easy to use and buy (even though there may be legislation against their use by ordinary people) only results in more sales of covert gadgets.
About the Author
Read latest reviews on spy gadgets, security devices and surveillance equipment
Black Ops Spy Car/RC-XD Surveillance Vehicle Test Drive
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LUXURY SPY PEN WITH HIDDEN DIGITAL VOICE RECORDER. PROFESSIONAL SURVEILLANCE HOT $203.79 |
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FM SPY BUG TRANSMITTER – Surveillance, Listening device,Monitoring, small, radio $21.97 |
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Smoke Detector Alarm SPY Home security hidden camera DVR Motion Surveillance 8G $53.99 |
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New!! Video & Audio Record Snap Shot Waterproof Surveillance MP3 Music Spy Watch $65.87 |
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Infrared HD Surveillance Spy Sport Watch Hidden Camera Waterproof Video DVR 4GB $56.88 |
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WARNING CCTV PRIVATE VIDEO SPY SURVEILLANCE CAMERAS RECORDING YARD PROPERTY SIGN $8.85 |
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HIDDEN SPY SURVEILLANCE CAMERA NANNY CAM SD CARD DVR $429.00 |
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4 GB Secret Agent Hidden Camera Recorder Spy Surveillance Video USB Sport Watch $23.90 |
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Mini SPY Screw CCTV Security Surveillance Color Camera $14.99 |
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SPY Screw CCTV mini Security Surveillance HD Camera M10 $14.99 |
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Camera Recorder Surveillance Spy HD Video Cam Bluetooth Headset + Charger Set $13.95 |
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Covert Spy Surveillance Pinhole Video Camera Spying Camcorder Antenna Detector $5.35 |
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Handheld Spy Surveillance Camera Hidden Video Recorder Finder Detector Locator $5.35 |
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Mini Spy Surveillance Camera Hidden Video Voice Recorder Finder Detector Alarm $12.80 |
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Mini Spy Surveillance Camera Wall Towel Hanger Holder Hook Hidden Video Recorder $18.40 |
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NEW Spy Surveillance Video Camera Recorder SpyCam Finder Locator Detector Sensor $12.80 |
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CMOS 420 TV Security Surveillance Dome Camera CCTV SPY $16.27 |
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Secret Agent Hidden Camera Recorder Spy cam Surveillance Video Key Holder new $9.25 |
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Secret Agent Hidden Camera Recorder Spycam Surveillance Spy Video Cam Male Watch $32.00 |
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Secret Agent Hidden Camera Recorder Spycam Surveillance Spy Video Cam Wall Clock $53.60 |
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Secret Agent Hidden Camera Recorder Surveillance Spy Video Cam Bluetooth Headset $31.20 |
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Secret Agent Hidden Camera Recorder USB Spycam Surveillance Spy Video SunGlasses $19.95 |
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Secret Spy Surveillance Covert Pinhole Video Camera Spying Camcorder Detector $12.80 |
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Security Audio Spy Clock Surveillance Video Camera Cam new $22.95 |
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Spy Clock Surveillance Security Audio Video Camera Cam $33.60 |
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Spy Surveillance CCTV Video Camera Recorder SpyCam Cam Sensor Detector Finder $5.35 |
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Spy Surveillance Wall Door Back Hook Clothes Hanger Video Camera Recorder SpyCam $18.40 |
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Spy Nanny Surveillance Car Key Chain Hidden Video Cam Camera DVR DV Recorder $10.99 |
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Mini Table Desk Clock Hidden Spy Nanny Surveillance Camera DVR DV Motion Detect $32.99 |
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Voice-activated Security Spy Surveillance Wall Socket Camera Camcorder DV DVR $32.99 |
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Surveillance Spy Alarm Clock Hidden Camera Nanny Cam DVR w/ Motion Detector $33.99 |
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4 GB HD Spy Surveillance Waterproof Watch Camera Video DVR $19.99 |
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DV DVR Spy Nanny Surveillance Glasses Sunglasses Hidden Camera Video Recorder $49.99 |
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16GB 1280*960 Clothes Hook Surveillance Spy Camera Cam DVR DV (Black or White) $25.99 |
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Wall Plate Socket Secret Agent Hidden Camera Recorder Surveillance Spy Video Cam $30.40 |
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4 Wireless USB Camera spy PC surveillance System cctv Long Range BOOSTER Antenna $159.99 |
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LOT OF BURGLAR ALARM SPY CCD SECURITY VIDEO SURVEILLANCE CAMERA WARNING STICKERS $10.75 |
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4 Wireless USB Cameras spy PC surveillance SYSTEM DVR outdoor led software NEW $155.90 |
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WIRELESS PINHOLE CAMERA SPY CAM NANNY SURVEILLANCE CORDLESS CCTV $27.99 |
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Wireless Spy GSM SIM Phone Surveillance Device Bug=US $28.99 |
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Wireless Pinhole Surveillance Color Hidden Video Recorder Camera Nanny Spy Cam $59.95 |
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Wireless Pinhole Surveillance Color Video Camera Nanny Spy Cam with Sound Audio $59.95 |
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SPY WIRELESS PINHOLE CAMERA HIDDEN NANNY SURVEILLANCE DV CAM DVR VOICE ACTIVATED $59.95 |
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Wholesale Lot 5 SPY EAR Amplifier HEARING AID Surveillance Bug NEW U.S. seller $7.89 |
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FAKE SECURITY SPY SURVEILLANCE DOME CAMERA SYSTEM+WARNING SIGN+DECAL STICKER LOT $16.10 |
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NEW 6 LOT HOME SPY SECURITY SURVEILLANCE ZOOM CAMERA COLOR WARNING STICKERS $7.95 |
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8GB Spy Sunglasses DVR video Surveillance camcorder 1280×960 ship from USA $59.90 |
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4GB Spy Waterproof Watch Camera 1280*960 HD Video Surveillance Cam USA shipped $49.98 |
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Surveillance Spy Camera DVR in Pen by Mini Gadgets NEW $139.99 |
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Surveillance Spy Cam ‘Camstick100′ Mini DVR by Mini Gadgets NEW $69.99 |
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Mini Video Color CCTV SPY Security Surveillance Camera $8.29 |
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Smoke Detector Nanny Cam Hidden Surveillance Security Spy Camera/Recorder DVR DV $284.05 |
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2 Wireless Mini Spy Cam Home Video Surveillance Security Camera System CCTV DVR $284.05 |
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4 Wireless Mini Spy Cam Home Video Surveillance Security Camera System CCTV DVR $521.55 |
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Covert Screw Head B&W Wired Video Camera Mini Pinhole Spy Nanny Cam Surveillance $122.55 |
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iPod Dock Wireless Hidden Video Spy Cam Surveillance Camera Home Security CCTV $335.00 |
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US Patrol Photo Camera Security Nanny Spy Surveillance $26.95 |
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Body Worn Video Surveillance Motion Detector Activated Spy Camera DVR Recorder $214.62 |
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Surveillance Spy Camera DVR in Pen by Mini Gadgets NEW $139.99 |
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Hidden Surveillance Spy Camera DVR in Soda Can by Mini Gadgets NEW $139.99 |
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Surveillance Color Spy Camera DVR in Keychain by Mini Gadgets NEW $79.99 |
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Surveillance Spy Camera DVR in Hat by Mini Gadgets NEW $134.99 |
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Surveillance Spy Camera DVR in LED Flashlight by Mini Gadgets NEW $129.99 |
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Parabolic Reflector Dish Spy Microphone Audio Surveillance Voice Sound Amplifier $115.00 |
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Mini Spy Surveillance Car Flip Key Remote Camera DVR Video Motion Detector $19.99 |
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Covert Baseball Cap Hat Camera Body Worn Video Spy Cam Surveillance DVR MiniDV $151.05 |
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Surveillance Color Spy Camera DVR in Keychain 2 GB by Mini Gadgets NEW $109.99 |
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Surveillance Spy Camera DVR with Audio in Button by Mini Gadgets NEW $124.99 |
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Digital Surveillance Spy Camera in Sunglasses by Mini Gadgets NEW $109.99 |
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Surveillance Spy Camera DVR with Remote in Digital Clock by Mini Gadgets NEW $124.99 |
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Alarm Clock Hidden Security Surveillance Video Camera/Recorder Camcorder Spy Cam $170.05 |
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SPY WIRELESS PINHOLE CAMERA NANNY SURVEILLANCE CAM $27.99 |
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4 X ch Wireless DIGITAL Camera Surveilance system PC Nanney cam spy system NEW $199.99 |
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SPY Dvr SMOKE DETECTOR 4GB TF CARD Surveillance hidden camera NANNY CAM security $55.99 |
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Wireless mini Camera spy nanny PC Security system SURVEILLANCE 2.4GHZ WIN7/VISTA $149.99 |
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Smoke Detector Nanny Cam Hidden Surveillance Security Spy Camera/Recorder DVR DV $284.05 |
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1/3 CCD Colour Spy Camera for Surveillance Security Systerm $36.17 |
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SPY Dvr Bluetooth camcorder Surveillance hidden camera MINI nanny personal NEW $34.99 |
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SPY Dvr Bluetooth camcorder Surveillance hidden camera MINI nanny personal NEW $34.99 |
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iPod Dock Wireless Hidden Video Spy Cam Surveillance Camera Home Security CCTV $335.00 |
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Body Worn Video Surveillance Motion Detector Activated Spy Camera DVR Recorder $214.62 |
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2 Wireless Mini Spy Cam Home Video Surveillance Security Camera System CCTV DVR $284.05 |
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4 Wireless Mini Spy Cam Home Video Surveillance Security Camera System CCTV DVR $521.55 |
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Covert Screw Head B&W Wired Video Camera Mini Pinhole Spy Nanny Cam Surveillance $122.55 |
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Tenvis Wireless WIFI IP Network Surveillance Security SPY Camera Mini US Stock $63.90 |
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Wireless SPY IP Network Security Surveillance Camera Pan/Tilt US Stock $55.90 |
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Wireless WIFI Surveillance IP Network Pan/Tilt SPY CCTV Camera US Stock $55.90 |
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Home Safety Hidden Spy HD Clothes Hook Surveillance Nanny Camera Mini DVR $0.99 |
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CD Pro Hidden Spy Camera DVR Tap Bug Detector With Monitor Counter Surveillance $748.99 |
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TSCM Mobile Cell Phone Scrambler Call Security Anti Spy Tap Counter Surveillance $269.00 |
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WIRELESS MINI SPY CAMERA CAM WITH NIGHT VISION CCTV CORDLESS SURVEILLANCE $23.99 |
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Parabolic Reflector Dish Spy Microphone Audio Surveillance Voice Sound Amplifier $115.00 |
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Covert Baseball Cap Hat Camera Body Worn Video Spy Cam Surveillance DVR MiniDV $151.05 |
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Alarm Clock Hidden Security Surveillance Video Camera/Recorder Camcorder Spy Cam $170.05 |
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4 GB DIGITAL SPY PEN (Great for family gatherings or real surveillance) $54.08 |