Leica 850280 4-inch Signal Transmitter Clamp Utility Locator

The Leica Geosystems 850280 is a 4-inch (100mm) signal transmitter clamp designed for professional utility locating applications. Its purpose is straightforward: clamp it around a buried utility's accessible point — such as a telecom cable, power cable, or metallic pipe — and use it in conjunction with a Leica signal transmitter to apply a traceable 33kHz signal along the line. A compatible Leica locator then detects this signal from the surface, allowing the operator to map the utility's path and depth without excavation.

The clamp-on design is a practical advantage in the field, as it allows the operator to couple the signal onto the target utility without disconnecting or physically altering the cable or pipe. The 4-inch capacity covers a broad range of common utility diameters encountered in residential and commercial locating work, from smaller telecom cables to medium-diameter pipes. Built to Leica Geosystems standards, the clamp is intended for repeated professional use in outdoor and jobsite conditions where durability and signal consistency are essential for accurate results.