Spectra Precision 546372 UL633N Universal Construction Grade Laser Level Kit

Spectra Precision UL633N Universal Construction Grade Laser Kit – Dual Grade + Z Axis Control with 2x HL760 Receivers (Part No. 546372)

The Spectra Precision UL633N Universal Laser Level Kit is a high-performance solution for contractors who require full control over all three axes (X, Y, and Z) for the most demanding layout and alignment jobs. As the only construction-grade laser in its class with true 3-axis control—including Z-axis fan beam technology for vertical alignment—the UL633N is built for precision in everything from site prep and foundation layout to pipe installation and steel erection. This model is uniquely capable of handling horizontal, vertical, and dual-slope grading with automated alignment and wireless control.

With long-range capabilities up to 800 m (2,600 ft) using the HL760 receiver, the UL633N is designed for accuracy, efficiency, and rugged jobsite performance. It’s a top-tier option for professionals in civil construction, underground utilities, vertical steel erection, and commercial concrete work. Included in the kit are two HL760 Laserometer Receivers, the RC603N remote, SF601 Spot Finder, rechargeable battery kit, and accessories—all packed in a durable hard case. Backed by a 5-year warranty and IP67-rated sealing, this laser is a reliable tool that minimizes downtime and ensures layout is done right the first time.

Spectra Precision Universal Construction Grade Laser Level Kit At a Glance

• Full 3-Axis Control (X, Y, Z): The only laser in its class with automated alignment on all three axes, including Z-axis vertical control using Spot Finder
• Dual Grade Functionality: Enables simultaneous slope control on X and Y axes up to ±25%, streamlining complex site grading and drainage work
• Fan Beam Technology (Z Axis): Projects a vertical fan beam that enables fast and accurate plumb and alignment control for steel erection, façade work, and tilt-up panels
• Automatic Axis Alignment: Aligns the laser to existing reference points automatically, reducing setup time and improving consistency
• PlaneLok and Grade Match: Locks onto an existing elevation or slope to eliminate drift and save time on manual calculations
• RC603N Remote Control: Wireless two-way control from up to 150 m (490 ft) away for remote adjustments without returning to the laser
• Two HL760 Digital Receivers: Allows for remote grade monitoring and dual-side control with accurate distance-to-grade readout and anti-strobe filtering
• IP67 Rated Durability: Completely sealed against dust and water for year-round outdoor use
• 35-Hour Runtime: Long battery life with included NiMH rechargeable pack; also compatible with standard D-cell alkaline batteries
• 5-Year Warranty: Includes Spectra Precision’s “No Cost” warranty for worry-free operation and long-term reliability

Markets

• Civil Construction Used to control elevation and dual-slope grading across large-scale commercial and infrastructure projects like roads, highways, and building foundations.
• Underground Utilities Ideal for trenching, sewer, and storm pipe installations where both horizontal and vertical alignment are critical.
• Concrete Forming and Layout Helps concrete teams maintain correct elevations and vertical alignment when setting footers, walls, and tilt-up panels.
• Structural Steel & Tilt-Up Construction Z-axis control allows accurate vertical positioning of beams, columns, and wall panels with support for cranes and lifting rigs.
• Survey and Site Layout Crews Used in tandem with HL760 receivers to provide real-time grade monitoring, minimizing errors during layout and cut/fill operations.
• Municipal and City Works Supports curb and gutter layout, grading for sidewalks, storm drains, and street-level elevations for drainage or paving.
• Agricultural Site Prep Used for land leveling, grading irrigation systems, and aligning agricultural structures like greenhouses or barns.

Precise 3-Axis Control Built for Real-World Construction Demands! The UL633N gives contractors unmatched flexibility on complex jobsites where grade and alignment have to be controlled in all directions. Whether laying out long runs of sewer pipe or aligning anchor bolts across structural slabs, this system reduces time spent on manual measurement and rework. The included Spot Finder SF601 adds an automated Z-axis alignment feature ideal for vertical applications like tilt-up panels, columns, and façade work—saving time on crane setups and steel positioning. Plus, with two HL760 receivers, the kit allows for full wireless elevation tracking and Grade Match from opposite ends of the job.

Trades that rely on accurate slope setup—such as heavy equipment operators, survey teams, and concrete finishers—benefit from PlaneLok, which locks the laser onto a fixed elevation, preventing drift due to temperature changes or calibration errors. The RC603N remote allows workers to adjust slope, alignment, or beam masking up to 150 m (490 ft) away without walking back to the laser. This improves safety and speeds up layout processes significantly.

Spectra Precision 546372 UL633N Universal Construction Grade Laser Level Kit Features

• Leveling accuracy1,3: ± 0.5 mm/10 m, 1/16“ @ 100 ft, 10 arc seconds
• Grade accuracy1,3: ± 1.0 mm/10 m, 1/8“ @ 100 ft, 20 arc seconds
• Grade temperature drift sensitivity: ± 0,3 mm / 10 m / 1°C; 1/16” @ 310 ft. @ 1°F
• Operating diameter1,2: appr. 800 m (2,600 feet) with detector
• Grade range (Y;X): ± 25% both axes (not simultaneously)
• Grade range (Z): ± 25%
• Rotation: 0 – 750 rpm
• Scan mode: 5 preset sizes + variable adjustment
• Laser type: red diode laser 650 nm
• Laser class : Class 3
• Self-leveling range: appr. ± 14°
• Leveling indicators: LCD indications and LED flashes
• Radio range (HL760)1,2,4: up to 150 m (490 ft)
• Power source: NiMH battery pack/alkalines
• Battery life1: 35 hours NiMH
• Operating temp.: -20°C to 50°C (-4°F to 122°F)
• Storage temp.: -20°C to 70°C (-4°F to 158°F):
• Tripod attachments: 5/8 x 11 horizontally and vertically
• Dust and waterproof: Yes – IP67
• Weight: 3.1 kg (6.8 lbs)
• Low voltage indication: LCD battery indicator
• Low voltage disconnection: unit shuts off
• Warranty: 5 Years

Spectra Precision 546372 UL633N Universal Construction Grade Laser Level Kit Includes

• (1) GL633N Laser
• (1) RC603N Remote Control
• (2) HL760 Reciever & Clamp
• (1) NIMH Battery Pack
• (1) Universal Battery Charger
• (1) Hard Case

Spectra Precision 546372 UL633N Universal Construction Grade Laser Level Kit Specifications

UL633N Laser

• Leveling Accuracy: ±0.5 mm/10 m (1/16” at 100 ft)
• Grade Accuracy: ±1.0 mm/10 m (1/8” at 100 ft)
• Grade Temperature Drift Sensitivity: ±0.3 mm / 10 m / 1°C
• Grade Range (X/Y): ±25% each axis (independently)
• Grade Range (Z): ±25%
• Operating Diameter: 800 m (2,600 ft) with HL760
• Rotation Speeds: 0–750 RPM
• Laser Type: 650 nm red diode (Class 3)
• Self-Leveling Range: ±14°
• Dust/Water Protection: IP67
• Power Source: NiMH rechargeable pack or D-cell alkaline
• Battery Life: 35 hours (NiMH)
• Operating Temp: -20°C to 50°C (-4°F to 122°F)
• Tripod Mounting: 5/8 x 11 (horizontal and vertical)
• Weight: 3.1 kg (6.8 lbs)
• Warranty: 5-Year No-Cost Warranty

RC603N Remote Control

• Range: Up to 150 m (490 ft)
• Battery Life: 130 hours (2 x AA)
• Dust/Water Protection: IP66
• Weight: 0.26 kg (0.57 lbs)

HL760 Receivers (x2)

• Display Units: mm, cm, ft, in, fractional in
• Reception Height: 127 mm (5 inches)
• Accuracy Modes: 6 selectable (Ultra Fine to Coarse)
• Drop Protection: 3 m (10 ft)
• Dust/Water Protection: IP67
• Battery Life: 60+ hours (2 x AA batteries)
• Operating Temp: -20°C to 50°C
• Weight: 0.27 kg (9.5 oz)
• Warranty: 3-Year “No Excuses” Warranty

SF601 Spot Finder

• Range: Up to 80 m (260 ft)
• Battery Life: 30 hours (4 x AA batteries)
• Dust/Water Protection: IP67
• Weight: 0.43 kg (0.95 lbs)

Spectra Precision 546372 UL633N Universal Construction Grade Laser Level Kit Warranty

• Spectra Precision’s 5 Year “No Cost” Warranty

Why Professionals Choose the Spectra Precision UL633N Universal Construction Grade Laser Level Kit

The Spectra Precision UL633N is often referred to in the field as a “universal laser” because it’s capable of tackling grade, line, and vertical control all in one unit. In real-world terms, this means fewer tools, fewer setups, and fewer chances for misalignment. The inclusion of dual HL760 receivers and Spot Finder gives layout teams the tools they need to lock in slope, elevation, and vertical positioning with minimal downtime. The fan beam Z-axis control is a standout feature that’s critical for building envelopes, tall wall placement, and anything that needs pinpoint vertical alignment.

If your crew is searching for a “grade laser with vertical alignment” or a “3-axis slope laser for pipe and concrete,” the UL633N fits the bill. It’s a serious tool for serious work—built for professionals who need reliable accuracy in high-pressure environments. Whether it’s trenching through tough terrain or erecting steel under a tight schedule, this laser is ready to go where survey stakes can’t.