The Vision line of underground utility locators from McLaughlin offers dual-functionality semiautomatic and manual gain adjustment. The semiautomatic gain is for congested, urban job sites where signal distortion is common, and the manual gain for less-congested areas. With the push of a button, the locators use three antennas to measure depth readings and then average the measurements for a more accurate reading. A waterproof inductive clamp on the locator can lay or partially grip the utility and produce a reading; it doesn’t require the clamp to be fully encircled around the utility. 800/435-9340; www.mclaughlinunderground.com