Trimble ST400 Sonic Tracer
The Trimble® ST400 Sonic Tracer uses ultra sonic signals to maintain a set distance or elevation from an object, a design surface, or the ground.
When mounted to a motor grader or dozer blade, the ST400 Tracer can be used to reference a string line, curb and gutter, or previous pass as a grade control reference.
The Trimble ST400 Sonic Tracer offers heavy and highway contractors:
- Multicolored integrated grade display – conveys clear grade feedback to the machine operator for higher productivity
- Selectable sensor accuracy – provides typical accuracy of +/- 1mm (0.04″) to control elevation for even the tightest jobsite specifications