Need help finding an internet signal while traveling or away from home? The Wi-Fi Digital Hotspotter displays signal strength, SSID, security status and channel (much more than a typical WiFi detector). When multiple networks are available this tiny travel gadget provides information on each. Other features include a frequency range of 2.4Ghz to 2.462Ghz, coverage up to 200 feet, and detection of both WEP and WPA encryption. This keychain travel gadget runs on 2 AAA batteries, which are included. $59.99 at thinkgeek.