Trimble Construction Tools recently announced the Spectra Precision DG613 and DG813 pipe lasers, a new generation of DialGrade models for gravity flow pipe lines. The new lasers are smaller in length than their predecessors, the DG511 and DG711, a feature especially helpful when setting up the units in manholes with precast inverts and tight radii. Both models are fully self-leveling over their entire grade range of -12 to +40 percent. The cross axis is also fully compensated, providing quick set up and ensuring the laser will be level without having to manually rotate it in the invert.
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