The Slammer is a heavy-duty waveguide connector designed for rugged field use. It is designed for inserting waveguides into hard, dry, and compacted soils, and for comfort and ease in making multiple measurements. The removable 2.5 lb sliding hammer can be used to insert waveguides under the most difficult of conditions. Waveguides, ordered separately, are available in lengths ranging from 20 cm to 60 cm. Note: In order to use the Slammer with your Trase unit, the Trase must be running version 2110A software.