The Frequency Grabber will quickly and easily supply you with the frequency being used by almost any nearby transmitter. Now you can instantly find out the operating frequency of the radios being used at the scene without having to run your scanner over the entire radio spectrum. A great tool for getting the "secret" or undercover frequencies that you see being used around you. You can also calibrate your transmitters and receivers prior to deployment with this device. It can also be used to locate hidden transmitter bugs. This pocket size unit not only displays the frequency but also has a 16-section bar graph to indicate RF signal strength and a 10-digit LCD display. It runs on an internal ni-cad battery pack and includes a 110v charger and 7-section tunable telescopic antenna. Frequency range: 1 MHz to 3 GHz. Size: 3.25" x 2.5" x 1.38" (exclusive of antenna).