Professional Rotary Laser Package Built for Excavation and Concrete Work
The Spectra Precision LL1505C-29S delivers field-proven rotary laser performance in a value-oriented kit sized for contractors who work primarily in imperial measurements. Built around the same rugged LL1505C rotating laser head found in higher-tier packages, the 29S configuration pairs it with the HL760 digital receiver, a fractional-inch grade rod, and a heavy-duty tripod — everything you need to start grading, forming, and checking elevations the moment you arrive on site. If your crews run in feet and inches and you don't need multi-laser receiver compatibility, this kit is purpose-built for you.
Where the LL1505C-29S Gets to Work
Designed for outdoor construction environments, the LL1505C rotary laser self-levels automatically within a ±5° range and spins a visible red beam across a 1,300 ft diameter working radius (2,600 ft diameter with the HL760 receiver). The IP66-rated housing shrugs off dust and rain, making it equally at home on a muddy excavation site or a wind-swept concrete pour. Common applications include setting cut/fill grades, establishing building pad elevations, checking drainage slopes, and layout control on commercial flatwork.
Key Specifications
- Self-Leveling Range: ±5° automatic compensation
- Working Diameter: 2,600 ft (with HL760 receiver)
- Accuracy: ±1/16 in at 100 ft
- Rotation Speed: 150, 300, or 600 RPM selectable
- Grade Range: 0% (horizontal only)
- IP Rating: IP66 dust- and water-resistant
- Battery Life: Up to 70 hours (4 × D-cell alkaline)
- Operating Temperature: -4°F to +131°F (-20°C to +55°C)
- Laser Class: Class IIIa / 3R, 635 nm red
What's in the Kit
- Spectra Precision LL1505C — rugged, self-leveling rotary laser transmitter
- HL760 Receiver — large digital display with audible and visual grade indicators, 1/16 in resolution
- Elevating Tripod — adjustable aluminum tripod for quick setup on uneven ground
- Fractional-Inch Grade Rod — imperial rod calibrated in feet and fractional inches for direct reading
- Carrying case, D-cell batteries, and operator documentation
Job Applications
Site Excavation and Cut/Fill Grading: Set the laser on stable ground, dial in your design elevation on the grade rod, and let your operator guide machine cuts to grade without a second person at the instrument.
Concrete Flatwork and Slab Pours: Use the HL760 receiver mounted to a screed pole to verify slab thickness and surface elevation across large pours — the audible alert keeps eyes on the concrete, not the display.
Building Pad Layout and Foundation Checks: Establish a level datum across an entire pad footprint quickly, confirm corner elevations, and catch any subgrade soft spots before forming begins.
Drainage and Utility Slope Control: While the LL1505C-29S operates at 0% grade, it's ideal as a horizontal datum reference; pair it with a slope adapter accessory for precise pitch control on storm drains and swales.
Compatible Accessories
- Spectra Precision HL760 Replacement Receiver
- Spectra Precision HR320 Dual-Display Grade Rod
- Spectra Precision C59 Carrying Case
- Heavy-Duty Dual-Clamp Tripod
- Alkaline D-Cell Battery 4-Pack
- Laser Detector Clamp / Rod Clamp
Related Guides
- How to Set Up a Rotary Laser Level on a Construction Site
- Rotary Laser vs. Line Laser: Which Do You Need?
- Reading a Grade Rod: Imperial vs. Metric Tips for Contractors
- Spectra Precision LL1505C Package Comparison: 29S vs. 29 vs. 1HD
Frequently Asked Questions
- What is the difference between the LL1505C-29S and the LL1505C-29?
- The primary difference is the receiver. The 29S kit includes the HL760 receiver, which displays readings in fractional inches and is designed for single-laser use. The standard 29 kit includes the HL700 receiver, which offers wider compatibility across multiple Spectra laser models. If your crews work exclusively with this laser and in imperial units, the 29S kit saves money without sacrificing jobsite functionality.
- Can the LL1505C-29S be used for grade (slope) work?
- The LL1505C itself is a horizontal-only laser — it does not have a built-in grade drive. For slope applications such as drainage pipe installation or parking lot grading, you would need to add a compatible grade adapter or upgrade to a laser model with an integrated grade function, such as the Spectra LL300S or LL400.
- How far does the HL760 receiver detect the laser beam?
- The HL760 receiver extends the working range of the LL1505C to approximately 1,300 ft radius (2,600 ft diameter) under typical outdoor conditions. Detection range can be reduced in bright sunlight or dusty environments; using the laser's sun mode or a higher RPM setting can improve detection in those conditions.
- Is the LL1505C-29S covered by a warranty?
- Spectra Precision backs the LL1505C with a limited 3-year instrument warranty and a 1-year warranty on accessories including the HL760 receiver and grade rod. Express Tools is an authorized Spectra Precision dealer, so your warranty registration and any service needs are fully supported through the manufacturer's network.
Frequently Asked Questions
What is the difference between the LL1505C-29S and the LL1505C-29?
The primary difference is the receiver. The 29S kit includes the HL760 receiver, which displays readings in fractional inches and is designed for single-laser use. The standard 29 kit includes the HL700 receiver, which offers wider compatibility across multiple Spectra laser models. If your crews work exclusively with this laser and in imperial units, the 29S kit saves money without sacrificing jobsite functionality.
Can the LL1505C-29S be used for grade (slope) work?
The LL1505C itself is a horizontal-only laser and does not have a built-in grade drive. For slope applications such as drainage pipe installation or parking lot grading, you would need to add a compatible grade adapter or upgrade to a laser model with an integrated grade function, such as the Spectra LL300S or LL400.
How far does the HL760 receiver detect the laser beam?
The HL760 receiver extends the working range of the LL1505C to approximately 1,300 ft radius (2,600 ft diameter) under typical outdoor conditions. Detection range can be reduced in bright sunlight or dusty environments; using the laser's sun mode or a higher RPM setting can improve detection in those conditions.
Is the LL1505C-29S covered by a warranty?
Spectra Precision backs the LL1505C with a limited 3-year instrument warranty and a 1-year warranty on accessories including the HL760 receiver and grade rod. Express Tools is an authorized Spectra Precision dealer, so your warranty registration and any service needs are fully supported through the manufacturer's network.