I bought an Elro C910 wireless security camera a while ago that I was planning on using as a video baby monitor. It cost me only about €40 and I have to say it works better than I expected. The image quality isn’t stellar and there’s some interference, but it could have worked well enough for my needs if it weren’t for one tiny little problem. Whenever the camera’s power is plugged in, I have no wifi reception at all anywhere in my house. I’ve tried setting my router to different channels but to no avail.

The camera uses the 2.4 GHz band, and apparently uses it up completely. So, if you (or your neighbors?) value your wireless network it might be a good idea to stay away from this little gadget. If you, for some reason, need to jam someone’s wifi connection, this is the thing to get :).