SitePro 27-LR410H Horizontal Rotary Laser Package

SitePro 27-LR410H Horizontal Rotary Laser Package

The SitePro 27-LR410H Horizontal Rotary Laser Package delivers dependable, jobsite-proven grade control for contractors who need a complete, ready-to-work system right out of the box. Engineered for horizontal plane applications, this self-leveling rotary laser maintains reference accuracy across large work areas — making it the right tool for grading, drainage layout, utility installation, and site preparation on commercial and residential construction projects alike.

System Overview & Jobsite Applications

The 27-LR410H is purpose-built for horizontal plane work where accurate grade verification over long distances is essential. Whether you're establishing finished floor elevations, setting pipe slopes, or laying out parking lot grades, this laser provides a reliable, visible reference plane your entire crew can work from simultaneously. The package includes everything needed to get on grade fast — laser transmitter, detector, grade rod clamp, tripod, and carrying case — minimizing the time between delivery and first shot.

Key Specifications

• Laser Class: Class IIIa (3R), 635nm visible red beam
• Working Range: Up to 1,000 ft diameter with included detector
• Self-Leveling Range: ±5° automatic compensation
• Leveling Accuracy: ±1/16 in. at 100 ft
• Rotation Speed: Variable — Low, Medium, High settings
• IP Rating: IP54 dust and splash resistance
• Battery Life: Up to 70 hours on AA alkaline batteries
• Operating Temperature: -4°F to 122°F (-20°C to 50°C)
• Tripod Thread: 5/8 in. x 11

What's in the Kit

• SitePro 27-LR410H horizontal rotary laser transmitter
• LR410 laser detector / receiver with audible and visual grade indicator
• Detector rod clamp for grade rod or story pole mounting
• Adjustable tripod with quick-release head
• Rechargeable battery pack and AC adapter
• Hard-shell carrying and storage case
• Operator's manual and calibration certificate

Job Applications

Grading & Earthwork: Establish a consistent horizontal reference plane across an entire cut-and-fill site. Grade to final design elevations without constant re-checking — the detector signals your operator the moment the blade is on grade.

Drainage & Utility Layout: Set invert elevations and verify pipe slope for storm sewer, sanitary, and irrigation systems. The variable rotation speed lets you slow the beam for precise single-point shots in trench conditions.

Concrete Flatwork: Pour slabs and flatwork to exact elevation specs. Crew members working screeds or finishing tools can reference the detector independently, keeping the entire pour on plane without waiting on a rod man.

Building Layout & Floor Elevations: Transfer benchmark elevations across a building footprint or between floors during framing. The 1,000-ft working diameter means a single setup covers most residential and light commercial structures.

Compatible Accessories

• SitePro Laser Detector / Receiver (LR410)
• SitePro Detector Clamp for Grade Rod
• SitePro Heavy-Duty Tripod with Quick-Release
• SitePro Grade Rod — Fiberglass, 13 ft
• Replacement Rechargeable Battery Pack for LR410H
• SitePro Hard-Shell Replacement Carrying Case

Related Guides

• How to Set Up a Rotary Laser for Site Grading
• Rotary Laser vs. Pipe Laser: Choosing the Right Tool
• Understanding Laser Detector Range and Accuracy
• How to Calibrate a Self-Leveling Rotary Laser

Frequently Asked Questions

Does the SitePro 27-LR410H work outdoors in bright sunlight?

Yes. The included LR410 detector extends the working range to 1,000 ft in diameter, allowing the laser to be used effectively in full sunlight conditions where the naked eye cannot pick up the beam. The detector provides both audible beeps and an LED display to indicate on-grade, above, or below grade status.

Is this laser capable of grade slope applications?

The 27-LR410H is a horizontal-only rotary laser and does not offer manual grade slope (dual-axis tilt) functionality. If your project requires setting a consistent percentage grade over a run — such as a sloped driveway or drainage swale — consider a dual-grade rotary laser model. For horizontal plane grading and elevation transfer, the LR410H is the right choice.

What type of batteries does the LR410H use and how long do they last?

The package includes a rechargeable battery pack and AC wall adapter. On a full charge, the laser is rated for up to 70 hours of continuous operation. AA alkaline batteries can also be used as a backup power source, providing comparable runtime in the field when charging is not available.

Is the SitePro 27-LR410H covered under warranty?

SitePro backs the 27-LR410H with a manufacturer's limited warranty covering defects in materials and workmanship. Express Tools is an authorized SitePro dealer, ensuring your warranty registration is valid and that you have access to factory-authorized service. Contact our team for current warranty terms or to initiate a warranty claim.