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Spectra Precision Laser GL412 and GL422

Trimble Spectra Precision Laser Grade Lasers

  • The Spectra Precision Laser GL412 single-grade laser and GL422 dual-grade laser offer fast, easy horizontal level, grade and vertical plumb setup with no manual leveling.
  • Send a continuous self-leveled 360 degree laser reference over an entire work area
  • Grade range of -10% or +15% enables use for various slope applications
  • Two-way, full-function remote control with built-in backlit grade display
  • Rugged design can withstand a 3-ft. drop directly onto concrete




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Trimble Navigation Limited


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