With laptops steadily becoming a holiday essential and Wi-Fi hotspots popping up everywhere, keeping up to date with things like Tech Digest is now pretty easy. One thing can still be a bit of problem, is tracking down those Wi-Fi hotspots and, as I once discovered, wandering round with an open laptop to look for a signal is fraught with danger.

Luckily there are plenty of Wi-Fi detectors available and the prices are dropping fast. LINDY has released this Wi-Fi Finder which picks up any 802.11b/g and Bluetooth networks, showing their strength on a simple red yellow and green indicator. It has a range of 50m and would probably also fit quite nicely on a keyring.