The Spectra Precision LL1505C-2A is a complete, job-ready horizontal laser system built for professional contractors who need reliable leveling performance right out of the box. This package bundles the LL1505C self-leveling rotating laser with the HL450 receiver, aluminum inch grade rod, adjustable tripod, and a large transport case—everything you need for interior finish work, concrete forming, and exterior site layout. Alkaline battery operation means no charging delays: load fresh batteries and get to work immediately.
System Overview & Jobsite Applications
The LL1505C delivers a highly visible laser plane across a working range of up to 1,500 feet in diameter when used with the included HL450 receiver. The self-leveling mechanism compensates for out-of-level conditions within ±5°, and the unit locks the compensator for safe transport. Whether you're establishing floor elevations on a commercial slab, setting forms for a foundation pour, laying out drainage grades, or checking ceiling heights across a large interior space, the LL1505C-2A package has the range and accuracy to get the job done efficiently.
Key Specifications
- Model: Spectra Precision LL1505C-2A
- Working Range: Up to 1,500 ft (450 m) diameter with HL450 receiver
- Accuracy: ±1/16 in at 100 ft (±1.5 mm at 30 m)
- Self-Leveling Range: ±5°
- Rotation Speed: 150 / 300 / 600 RPM (selectable)
- Power Source: Alkaline batteries (4 × D-cell)
- Battery Life: Up to 100 hours typical
- Ingress Protection: IP54 rated — dust and splash resistant
- Operating Temperature: -4°F to 122°F (-20°C to 50°C)
- Receiver: Spectra HL450 with remote clamp and audible/visual grade indication
What's in the Kit
- Spectra Precision LL1505C self-leveling horizontal rotating laser
- HL450 Laser Receiver with remote control capability for adjusting laser elevation from the rod
- Aluminum Grade Rod with inch graduations for elevation transfer and differential leveling
- Adjustable Tripod for stable setup on uneven terrain
- Large Transport & Storage Case for organized, protected jobsite transport
- Batteries, user manual, and calibration certificate included
Job Applications
Concrete Forming & Flatwork: Set form boards and screed rails to a consistent elevation across large slabs. The 1,500 ft range covers even the largest commercial pours without repositioning.
Interior Finish & Framing: Establish level reference lines for drop ceilings, partition walls, cabinet installation, and flooring on multi-room commercial or residential projects.
Site Grading & Drainage: Use the HL450 receiver on the grade rod to verify cut-and-fill elevations and establish positive drainage slopes with confidence.
Utility & Pipeline Layout: Transfer benchmark elevations to set pipe inverts and confirm trench grades for storm, sanitary, and water main installations.
Compatible Accessories
- Spectra HL450 Replacement Receiver
- Spectra HR320 Hand-Held Remote Control
- Aluminum Grade Rod Extensions
- Laser Target Plate for LL1505C
- Heavy-Duty Laser Tripod
- Replacement D-Cell Alkaline Battery Pack
Related Guides
- How to Set Up a Rotating Laser Level on a Jobsite
- Rotating Laser vs. Line Laser: Choosing the Right Tool
- How to Use a Laser Receiver for Grade Work
- Spectra Precision LL1505C Calibration & Maintenance Guide
Frequently Asked Questions
- Does the LL1505C-2A work outdoors in bright sunlight?
- Yes. The included HL450 receiver detects the laser beam in full daylight conditions at distances up to 1,500 ft, making the system fully functional for exterior grading and site layout even on sunny days. The laser beam itself is visible to the naked eye only in low-light or interior conditions.
- What batteries does the LL1505C use, and how long do they last?
- The LL1505C runs on four standard D-cell alkaline batteries. Under typical field conditions you can expect up to 100 hours of runtime, which makes this unit extremely cost-effective on long projects. No proprietary battery packs or charging equipment required.
- Is this laser level accurate enough for finish concrete work?
- Absolutely. The LL1505C is rated at ±1/16 in accuracy at 100 ft, which meets the tolerance requirements for concrete flatwork, floor leveling, and most finish applications. For critical floor flatness specifications (FF/FL), confirm project tolerances with your engineer.
- Can the HL450 receiver control the laser elevation remotely?
- Yes. The HL450 receiver included in the LL1505C-2A package features remote control functionality, allowing the rod person to adjust the laser's elevation from the grade rod location. This significantly speeds up grade-checking workflows by eliminating trips back to the instrument.
Frequently Asked Questions
Does the LL1505C-2A work outdoors in bright sunlight?
Yes. The included HL450 receiver detects the laser beam in full daylight conditions at distances up to 1,500 ft, making the system fully functional for exterior grading and site layout even on sunny days. The laser beam itself is only visible to the naked eye in low-light or interior environments.
What batteries does the LL1505C use, and how long do they last?
The LL1505C runs on four standard D-cell alkaline batteries. Under typical field conditions you can expect up to 100 hours of runtime, making this unit extremely cost-effective on long projects with no proprietary battery packs or charging equipment required.
Is this laser level accurate enough for finish concrete work?
Yes. The LL1505C is rated at ±1/16 in accuracy at 100 ft, which meets the tolerance requirements for concrete flatwork, floor leveling, and most finish applications. For critical floor flatness specifications (FF/FL), confirm project tolerances with your engineer of record.
Can the HL450 receiver control the laser elevation remotely?
Yes. The HL450 receiver included in the LL1505C-2A package features remote control functionality, allowing the rod person to adjust the laser's elevation directly from the grade rod location. This significantly speeds up grade-checking workflows by eliminating repeated trips back to the instrument head.
