The SureLock Digital TV Signal Finder simplifies antenna pointing and takes the guesswork out of finding local TV channels. A built-in signal meter detects digital TV signals as the antenna is rotated to indicate the best antenna position for maximum TV reception. The SureLock connects to an existing TV antenna output or may be installed in-line between the antenna output and the TV or converter box. Built-in signal attenuator to adjust sensitivity when in very strong or weak signal areas.