SitePro Smart-TRAK ST102 Magnetic Locator The SitePro Smart-TRAK ST102 Magnetic Locator is a high-performance locating instrument designed for precise detection of ferrous underground objects in challenging environments. Featuring advanced Smart-Search Technology™, it enhances accuracy by indicating polarity and reducing interference from nearby metal structures, making it especially effective around fences, vehicles, and congested job sites. Built for professional locating workflows, the ST102 combines enhanced sensitivity, intuitive controls, and ergonomic balance to support fast and accurate pinpointing of survey markers, valve boxes, rebar, and buried infrastructure. Its rugged construction and waterproof sensor tube ensure dependable operation in harsh field conditions. Key Features • Smart-Search Technology™ – indicates polarity and minimizes interference for precise locating • 1.5x increased sensitivity – improves detection of weak or deep signals • Large LCD display – 0–99 numeric readout with signal strength, polarity, and battery indicators • Four operating modes – Standard, Erase, Smart+, and Smart– for versatile locating • Waterproof sensor tube (IP67) and rugged IP54 housing for durability in harsh environments • Audio and visual output – tone and display feedback for efficient target identification • Ergonomic, balanced design – supports comfortable one-handed operation • Up to 50-hour battery life using standard AA batteries Ideal For Surveying, utility locating, construction, and municipal applications requiring accurate detection of buried ferrous objects , including survey markers, valve boxes, cast iron pipes, manholes, and rebar.