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Spectra Precision GL622N-BL Dual Grade Laser - LASER ONLY

Spectra Precision

MSRP: $3,540.00
$2,825.00
(You save $715.00 )
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SKU:
SPE-GL622N-836
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Overview

The Spectra Precision LL500-12 Long Range Laser Complete Package delivers professional-grade laser leveling performance for contractors who demand accuracy and efficiency on large-scale construction sites. This comprehensive system extends your effective working range to 500 feet in all directions, eliminating the constant repositioning that slows down excavation, grading, and foundation work. The complete package includes the LL500-12 rotating laser, CR600 laser receiver with inches rod reading display, heavy-duty tripod, and protective carrying case—everything you need to establish precise grades and elevations from day one.

Designed for commercial contractors, site developers, and highway construction crews, this laser leveling system combines rugged durability with intuitive operation. The self-leveling laser head automatically adjusts to level within ±4 arc seconds (approximately 1/8 inch at 100 feet), while the bright laser beam remains visible in challenging outdoor conditions. The included CR600 receiver features a large, easy-to-read digital display showing elevation readings in inches, enabling your machine operators and grade checkers to achieve target elevations quickly without interpretation errors or constant callbacks to the instrument operator.

At $1,795, this complete package represents exceptional value compared to purchasing components separately. You're getting professional-grade Spectra Precision quality—trusted on construction sites worldwide—with the convenience of a ready-to-work system that arrives complete with all essential accessories.

Key Specifications

  • Working Range: 500 feet radius with CR600 receiver (1,000-foot diameter working area)
  • Leveling Accuracy: ±1/8 inch at 100 feet (±4 arc seconds)
  • Self-Leveling Range: ±5 degrees with automatic compensation
  • Rotation Speed: 600 RPM for bright, visible beam in outdoor conditions
  • Beam Type: Class 2 visible red laser diode
  • Power Source: Rechargeable NiMH battery or alkaline batteries (40+ hour runtime)
  • Operating Temperature: 14°F to 122°F (-10°C to 50°C)
  • Grade Capability: Manual X and Y axis slopes for drainage applications
  • Durability Rating: IP66 water and dust resistance
  • Display Type: CR600 receiver with inches readout and on-grade indicators

What's in the Kit

  • LL500-12 Rotating Laser: Self-leveling laser transmitter with protective housing and manual slope adjustment
  • CR600 Laser Receiver: Digital receiver with inches display, loud audio alerts, and rod clamp mounting bracket
  • Inches Grade Rod: Extendable measuring rod with inch graduations for elevation readings
  • Heavy-Duty Aluminum Tripod: Adjustable-height tripod with quick-release laser mounting platform
  • Rechargeable Battery Pack: NiMH battery with charger for extended runtime and lower operating costs
  • Hard Shell Carrying Case: Protective case with custom foam inserts for laser, receiver, and accessories
  • Operator Manuals: Comprehensive setup and operation guides for laser and receiver
  • Calibration Certificate: Factory calibration documentation for quality assurance records

Job Applications

  • Site Excavation and Rough Grading: The 500-foot range allows operators to grade entire building pads or parking lots without moving the laser. Machine-mounted receivers enable dozer and excavator operators to cut to grade in real-time, reducing over-excavation and material costs while increasing productivity by up to 30% compared to traditional string-line methods.
  • Foundation and Concrete Work: Establish consistent elevations across large foundation footings, slab-on-grade preparations, and concrete pours. The ±1/8 inch accuracy at 100 feet ensures your foundation work meets engineering specifications, while the inches display eliminates the math errors that occur when converting from feet-and-decimal readings to construction measurements.
  • Drainage and Slope Installation: Create precise drainage gradients using the manual slope function on both X and Y axes. Essential for parking lot drainage, athletic field grading, and site water management where proper slope prevents standing water and ensures long-term performance. The digital receiver shows exactly how far above or below grade you are in inches for quick adjustments.
  • Highway and Road Construction: The extended 500-foot range is ideal for highway shoulder grading, road base preparation, and long linear projects where repositioning equipment wastes valuable time. The rugged IP66 construction withstands the dust, vibration, and weather conditions common on roadway projects.
  • Agricultural Land Leveling: Perfect for precision land leveling in agricultural applications where consistent grades improve irrigation efficiency and crop yields. The long range covers large fields, while the accuracy ensures water flows uniformly without ponding or erosion issues.
  • Pipeline and Utility Installation: Maintain consistent trench depths and slopes for gravity-flow sewer, storm drain, and irrigation lines. The laser provides a constant reference along the entire trench length, helping crews avoid costly grade errors that compromise system performance.

Compatible Accessories

  • RC602 Remote Control: Adjust laser functions from up to 300 feet away without walking back to the instrument
  • Machine-Mount Receivers: Universal and brand-specific receiver mounts for excavators, dozers, and motor graders
  • Laser Safety Glasses: Enhance beam visibility in bright sunlight conditions for manual sighting applications
  • Elevating Tripod: Extended-height tripod for working over obstacles or achieving better line-of-sight
  • Additional Battery Packs: Spare rechargeable batteries for extended projects without downtime
  • Receiver Rod Extensions: Telescoping extensions for deep excavation or elevated grade checking

Related Guides

FAQ

What's the difference between the LL500-12 and standard rotary lasers?
The LL500-12 offers extended range up to 500 feet radius (versus 300-400 feet for standard models), making it ideal for large commercial sites and highway projects. The "12" designation indicates enhanced receiver compatibility and performance. The included CR600 receiver features an inches display rather than decimal feet, which contractors prefer for faster, more intuitive grade checking without constant conversions.
Can I use this laser for interior finish work like drop ceilings or wall layout?
Yes, the LL500-12 works excellently for interior applications including drop ceiling installation, wall framing layout, and elevation reference. You can reduce the rotation speed for brighter line visibility indoors, and the self-leveling accuracy of ±1/8 inch at 100 feet exceeds requirements for most interior finish work. However, if you primarily work on interior projects, you might consider a dedicated interior line laser for additional features like vertical and plumb beam modes.
How long does the battery last, and can I use it while charging?
The included rechargeable NiMH battery provides 40+ hours of continuous operation on a single charge under normal conditions. Battery life varies with temperature (shorter in extreme cold) and rotation speed settings. The laser can operate on alkaline batteries as a backup power source, but it cannot run directly from the charger while charging. We recommend purchasing a spare battery pack if you run multi-day projects to avoid downtime during recharging.
Is this package suitable for one-person operation or do I need a two-person crew?
The LL500-12 package is designed for efficient one-person operation in many applications. Set up the self-leveling laser on the tripod, attach the receiver to your grade rod, and check elevations yourself. For machine control applications, mount the receiver on your equipment and operate solo. However, on large sites, having a dedicated grade checker with the receiver while you operate machinery maximizes productivity. The system adapts to both working styles depending on your crew size and project requirements.
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