Spectra Precision Laser UL633N

  • The Spectra Precision UL633N is the unique construction laser to enable the total control of all three axes (X/Y/Z). This is accomplished via simultaneous Radio and Infrared communication and also completely new “fan beam” technology for the Z axis. Benefiting from Spectra Precision’s know-how, the UL633N is appropriate for all applications delivering an easy, fast and accurate job.

Product Details


  • General Construction
    • Leveling concrete forms and footers
    • Single and Dual slope grading
    • Vertical alignment such as anchor bolt and form alignment
    • Steep slope grading
  • Interior - Layout of walls, Installation of drop ceilings

Key Features

  • Total Control of X/Y Axes
    • Unlimited Automatic Dual Axis Features (Simultaneously in the X- and Y- axes)
      • High Precision Axis Alignments
      • Simplified Grade Match: measures and displays the existing grade over unknown ground
    • All functions flexible from 10 to 170 degrees
  • Total Control of Z Axis
    • Automatic Detection of plumb beam
      • Spot Align: aligns the plumb beam to a desired position
      • Spot Match: displays the measured Z-axis grade value
      • SpotLok: locks automatically the plumb beam to the SF601 center point
  • Versatile Communication Links
    • Radio (2 radio channels)
    • IR
  • Built for Today’s Jobs
    • Fully automatic up to +/-25% grade on X/Y/Z axes
    • Withstands a 1 m (3 ft) drop onto concrete
    • Long operating range - 800 m (2.600 ft) diameter
    • Long operating radio range - 150 m (490 ft)
    • Intuitive keypad
    • Mask mode
    • Includes HL760 Digital Readout Receiver
    • Automatic temperature compensation
    • Electronic leveling vibration filter

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Price Match Guarantee

Shop with Confidence

Not only have we been partners to the survey, engineering and construction industry for decades, but we want to make sure your shopping experience at Duncan-Parnell is worry-free. That’s why we’re offering you our Price Match Guarantee on select products on our website.* If you find a lower price on any geospatial item (identical brand and model#) we sell, we’ll match it, up to 2 weeks after you purchase it.

How does it work?

  • Purchase an eligible item (largely those from our geospatial category of products).
  • Find a lower advertised price another retailer/company with the same brand and model #, and let us know within 14 days of your purchase.
  • Duncan-Parnell will match it. Just call our toll-free geospatial customer service line at 1-833-834-3935

Terms & Exclusions:

  • This offer applies only to advertised online price of identical items (brand and model#) for sales by Duncan-Parnell and other survey and mapping dealers.
  • Price to be matched does Not include discounts from any loyalty or membership programs.
  • Price match does not apply to:
    • Auction site pricing
    • Used, rebuilt or refurbished equipment
  • Only one price match per customer.
FOR HELP OR MORE INFORMATION call us: 833.834.3935