Now Time is Watching You Fly By
One of the most varied types of hidden cameras out there is the clock. Whether it hangs on the wall, transmits a signal, or simply records it internally, one of these clocks can do the job for you.
If you like your clock camera to be on the wall, the SecurityMan ClockCam is the one for you. Working on the 900MHz frequency it transmits easier through walls to its RCA receiver which is able to work with up to two cameras at the same time.
If an alarm clock is more your thing you have a few different choices. If you don't intend to take any pictures in a dark area a solid choice is the SONY Alarm Clock Hidden Camera. This has a few great features like scheduled recording and motion activation. Point this at your front door and you'd be able to track the times of everyone entering and leaving your home. If you’re looking for something that will work at night, you could also use the True Nightvision Hidden Camera Alarm Clock which is very similar in function except for the automatic change to monochromatic night vision which makes it a little more expensive.
One of the neatest hidden cameras that appear as a clock is the Logitech WiLife Spy Camera. Able to work with up to 6 cameras in total, you can mix and match indoor, external, and hidden security cameras to cover all parts of your home. These all work with power line communication so there isn't any wireless communication involved as it’s streamed to your computer. You can even stream the images onto the Internet to watch all the parts of your home while you’re at work.