Instead of whipping out your notebook and booting it up just to find an available WiFi signal, why not take the easier route of using your iPhone or other WiFi-capable portable device? Well there is an even easier way now with the WiFi Signal Finder Pen. All you need to do is press the switch and let the LED light flash, where it will then pick up any WiFi signal in the vicinity. There is a working range of up to 50m outdoors and 30m indoors. Too bad it doesn’t pick up draft-N networks, nor is it capable of letting you know whether there is WEP encryption or not. The WiFi Signal Finder Pen will retail for $19.90 a pop. Well, at least you can use it to put down your John Hancock. Check out other WiFi signal finders we have covered in the past here.