The highly accurate and rugged Spectra Precision® Laser LL400HV laser level is an automatic, self-leveling, long range laser level designed to handle a wide variety of general construction and vertical alignment applications. Consistently delivering reliable and highly accurate performance, the LL400HV allows you to work smarter and faster, even in harsh jobsite conditions and has the ability to be used up to a 2600-foot diameter with a detector . Both weather and dust proof, the LL400HV can withstand a drop of up to 3 feet onto concrete as well as a tripod tip of up to five feet.

With its self-leveling capability, the LL400V also has an optional RC402N radio remote control to provide you with outstanding accuracy and ease of use. Grade Match connects different elevations and establishes a sloped reference over unknown ground, eliminating time-consuming manual slope adjustments. Grade Match is provided by the advanced HL760 Digital Readout receiver. PlaneLok locks on to an existing elevation or vertical alignment point automatically, eliminating all drift or possibility of error due to improper calibration or weather. The unique “Fingerprint” function ensures that the receiver only accepts the beam when paired with the optional HL760 laser. When a machine-mounted elevation is required, the CR600 receiver is also an option.

LL400HV User Guide

By choosing the right receiver you ensure the maximum performance from the LL400HV. Choose between the HL760 or CR600 receiver to customize the LL400HV for your specific application needs.

The LL400HV is quick to set up and require minimal training time. The LL400HV ships as a complete kit and fits in one case with tripod and grade rod.


  • Excavations
  • Slopes on grade
  • Leveling forms and footers
  • Screeding concrete
  • Driveways and ramps
  • Machine control
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