Spectra Precision UL633N-2C Universal Laser with (2) CR700 Multi-Use Receivers

Spectra Precision UL633N-2C Universal Laser System

The Spectra Precision UL633N-2C is a professional-grade universal laser system engineered for contractors who demand one instrument capable of handling every phase of a project — from rough grading and excavation layout to interior framing, finish flooring, and structural plumb work. Bundled with two CR700 laser receivers and a wireless remote control, the UL633N-2C delivers multi-line projection, remote-operated slope capabilities, and jobsite-proven durability in a single, cost-efficient package.

Overview & Jobsite Applications

Unlike single-purpose rotary or line lasers, the UL633N platform projects horizontal, vertical, and dual-slope reference lines simultaneously, allowing crews to coordinate layout across multiple trades without swapping instruments. The included CR700 receivers extend working range to 2,000 feet in diameter outdoors, while the wireless remote lets one operator control beam selection, slope settings, and on/off functions from up to 200 feet away — eliminating wasted trips back to the instrument. Whether you are setting forms for a slab, establishing structural column lines, or transferring grades across a large site, the UL633N-2C keeps the entire crew working from a single, trusted reference.

Key Specifications

• Working range: up to 2,000 ft (610 m) diameter with CR700 receiver
• Accuracy: ±1/16 in at 100 ft (1.5 mm at 30 m)
• Self-leveling range: ±5°
• Slope range: 0–25% on X and Y axes simultaneously
• Beam type: Red laser diode, Class IIIa/3R
• Rotation speed: 100, 300, 600 RPM selectable
• Battery life: Up to 30 hours (4x C-cell alkaline)
• IP rating: IP55 dust and water resistant
• Operating temperature: -4°F to 131°F (-20°C to 55°C)
• Wireless remote range: up to 200 ft (60 m)

What's in the Kit

• Spectra Precision UL633N universal laser instrument
• 2x CR700 laser receivers with clamps
• Wireless remote control
• Carry case
• Batteries (4x C-cell)
• Operator's manual and quick-start guide

Job Applications

Site Grading & Excavation: Use the horizontal rotating beam with dual CR700 receivers to control cut-and-fill operations across large sites. Two receivers allow a single operator to monitor grade at two locations simultaneously, or equip two machine operators for coordinated earthwork.

Foundation & Formwork Layout: Switch to vertical line mode to project plumb reference planes for squaring up footings, setting anchor bolt patterns, and aligning form panels — all without a second crew member holding a rod.

Interior Finish Work: The multi-line capability lets finish carpenters and tile setters establish level, plumb, and 90-degree references at the same time, accelerating layout for drop ceilings, partition walls, and large-format flooring installations.

Structural & Column Alignment: Dual-axis slope mode enables precise grade transfer for ADA ramp construction, drainage sloping, and setting steel column bases to specified bearing elevations without repeated instrument repositioning.

Compatible Accessories

• CR700 Laser Receiver (single unit replacement)
• Spectra Precision HL760 Laser Receiver
• Wireless Remote Control for UL633 Series
• Heavy-Duty Tripod for Rotary Lasers
• Universal Laser Wall Mount / Ceiling Bracket
• Spectra UL633N Carry Case (replacement)

Related Guides

• How to Set Grade with a Universal Laser and Two Receivers
• UL633N vs. LL300N: Choosing the Right Spectra Laser for Your Project
• Setting Up Dual-Axis Slope on the UL633N — Step-by-Step
• Best Laser Levels for Commercial Construction in 2024

Frequently Asked Questions

Can the UL633N project a vertical beam and a horizontal beam at the same time?

Yes. The UL633N supports simultaneous multi-line projection, including horizontal rotation, vertical fan beam, and slope lines — allowing crews to reference level and plumb planes concurrently without resetting the instrument.

What is the maximum slope the UL633N can be set to?

The UL633N supports slope settings from 0% up to 25% on both the X and Y axes simultaneously, covering the full range of grades encountered in site grading, drainage, and ADA compliance work.

Do both CR700 receivers work at the same time?

Yes. Both included CR700 receivers operate independently and simultaneously on the same laser signal, enabling two operators or two machine operators to hold grade references at separate locations on the same site.

How far away can I operate the wireless remote?

The included wireless remote control has an effective operating range of up to 200 feet (60 meters) from the instrument, allowing a single operator to adjust beam mode, slope values, and power without returning to the laser head.