SpyArsenal.com recommends Best Wireless Cameras:
Wireless Tiny Spy Camera
This tiny wireless spy camera, measuring just 19mm x 19mm. This mini camera can transmit colour video and sound directly to your TV or VCR for viewing / recording. It takes a matter of minutes to setup, simply place the camera overlooking the location you wish to view, plug the receiver into your TV or VCR. It can also be plugged into a PC with an analogue video capture card.
This covert camera has a built in transmitter with a range of approximately 100m, dependant on obstructions and is powerful enough to ensure picture quality remains excellent through walls, ceilings and floors. The spy camera has a high resolution of 380 lines and can be run off either a 9V battery (clip provided) or the AC power adaptor (also provided).
Wireless Night Vision Camera
This is a tiny wireless infrared camera with 4 built-in powerful LED's, allowing this ingenious mini camera to see in total darkness. This wireless camera measures just 19mm x 19mm. It can transmit video and sound directly to your TV or VCR for viewing / recording. It takes a matter of minutes to setup, simply place the spy camera overlooking the location you wish to view, plug the receiver into your TV or VCR. It can also be plugged into a PC with an analogue video capture card.
It's small enough to be hidden almost anywhere so it is ideal for use as a baby monitor, a birdbox camera or as a covert camera for low light surveillance operations.
The camera can send video for 4 hours non-stop if powered by a 9-volt alkaline battery (Duracell/Energizer). No duration limit when using the DC adaptor. Installation is simple and output can be easily recorded with an ordinary VCR without the need for any other accessories. The camera can run 24/7 without overheating.
Wireless USB Pinhole Camera
This 2.4GHz wireless pinhole camera can transmit live colour video with sound directly to your PC. Simply place the camera at the location you wish to observe and plug the receiver into an available USB port. The provided CCTV software can record at 30 frames / second straight onto your hard drive. The software features motion detection and allows remote viewing over the internet. Over 24hrs of full motion video can be recorded onto a standard 20GB hard drive.
The receiver also has a standard phono output that can be connected directly to a TV or Video for viewing / recording purposes.
MicroEar Wireless Mini VHF Receiver
Just insert microEar into your ear canal and you will receive information or prompting at distances up to a mile (depending on transmitter and radio conditions).
A VHF user-specified crystal-controlled receiver available in the range of 138 to 240MHz will receive signals up to several kilometers. Features include an automatic squelch circuit; a high sensitivity superheterodyne circuit which provides maximum receiver sensitivity; a self-adapting filter to reduce background noise; battery life of 15-30 hours and a volume control.
CCD Night Vision Camera
Wireless, infrared, weatherproof CCD camera and receiver package. This night vision camera can operate in total darkness (0.00 Lux) with the aid of the fitted 30 high power infrared LED's.
A high resolution of 420 TV lines make this an excellent outdoor or indoor security solution.
Wireless Birdbox Camera
The birdbox camera uses the latest infrared wireless technology to allow you to view a nesting bird family on your TV / monitor. Video footage can be transmitted to your TV / VCR for viewing /recording.