Trimble has introduced the Spectra Precision DG613 and DG813 pipe lasers, a new generation of DialGrade lasers for the installation of gravity flow pipelines.The DG613 and DG813 pipe lasers are smaller in length than their predecessors — the DG511 and DG711. This shorter length is ideal when setting up the units in manholes with precast inverts and a tight radius. Both models have a grade range from -12 to +40 percent and are fully self-leveling over the entire grade range. The cross axis is also fully compensated providing quick setup and ensuring the laser will be level without having to manually rotate it in
