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.