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Spectra Precision LL300S-X1 PRO Laser Package - Rechargeable, HL450 Receiver, Remote, TENTHS-Rod, HD Tripod and Small Case
0–25% single axis Range
Cover large layout jobs with a 0–25% single axis working reach.
±1/16 in at 100 ft (1.5 mm at 30 m) Accuracy
Hold grade with a ±1/16 in at 100 ft (1.5 mm at 30 m) accuracy rating.
Grade Range
Handles 0–25% single axis so crews can match design slopes.
Battery Runtime
Runs on Up to 100 hours (rechargeable NiMH pack included) for jobsite flexibility.
Eliminates the grade checker
Grade checkers cost $600-800/day. A rotary laser setup pays for itself in weeks and works indefinitely.
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Kit Builder
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Answer a few job questions and our Kit Builder assembles the full setup — receiver, rod, tripod, and case matched to your workflow.
Quick Answer
What is the Spectra Precision LL300S-X1?
The Spectra Precision LL300S-X1 PRO Laser Package is a professional-grade rotary laser system designed for contractors requiring precision leveling and slope applications. This complete package delivers accuracy of ±1/16 in at 100 ft with a working diameter up to 2,600 ft using the included HL450 receiver, and features up to 100 hours of battery runtime on the rechargeable NiMH pack. It's available from Express Tools.
What contractors use this rotary lasers for
Site Grading
Cut/fill earthwork, building pad preparation, base compaction
Concrete Flatwork
Slab pours, floor leveling, tilt-up panel layout
Machine Control
Grade control reference for motor graders and scrapers
Foundation Layout
Benchmark elevation transfer, footing forms, stem walls
Product Description
The Spectra Precision LL300S-X1-PRO is a complete, job-ready rotary laser package engineered for contractors who demand accuracy, speed, and remote-operated control across demanding grade work. By pairing the proven LL300S single-slope laser platform with the highly responsive HL450 receiver, wireless remote, tenths rod, heavy-duty tripod, and rechargeable battery system, this kit eliminates the need to source individual components—so you're operational from the first morning on site.
Package Overview & Jobsite Applications
Designed for earthwork, concrete flatwork, irrigation grading, and site prep, the LL300S-X1-PRO streamlines two-person crew workflows. The wireless remote control lets the instrument operator adjust slope settings and laser elevation from up to 200 feet away, reducing the constant back-and-forth repositioning that bleeds time on dense or active jobsites. The HL450 receiver's extended detection range—up to 2,600 feet in diameter—keeps grade checks accurate even in bright outdoor conditions where a naked beam is invisible.
Key Specifications
- Laser Class: Class IIIa / Class 3R, red beam
- Slope Range: 0–25% single axis
- Self-Leveling Range: ±5° automatic
- Working Diameter: Up to 2,600 ft (800 m) with HL450 receiver
- Accuracy: ±1/16 in at 100 ft (1.5 mm at 30 m)
- Remote Control Range: Up to 200 ft (60 m)
- Battery Runtime: Up to 100 hours (rechargeable NiMH pack included)
- IP Rating: Dustproof and waterproof construction for outdoor use
- Rotation Speed: 100, 300, or 600 RPM selectable
What's in the Kit
- LL300S Rotary Laser: Single-slope red-beam transmitter with remote-compatible control output
- HL450 Laser Receiver: Extended-range digital readout receiver with audible and visual grade indicators
- Wireless Remote Control: Full instrument control—slope, elevation, and rotation speed—from up to 200 ft
- Tenths Rod: Graduated grade rod calibrated in tenths of a foot for precise elevation referencing
- Heavy-Duty Tripod: Aluminum contractor-grade tripod with wide stance for stable instrument mounting
- Rechargeable Battery Pack & Charger: NiMH rechargeable system with up to 100-hour runtime
- Carrying Case: Molded hard case for protected transport and organized storage
Job Applications
Site Grading & Earthwork: Set and hold precise single-axis slope grades for drainage swales, parking lots, and cut-and-fill operations. The remote lets one operator run both the laser and grade checks without a second crew member at the instrument.
Concrete Flatwork: Establish accurate elevation control for slabs, footings, and formed pours. The HL450's fine-increment digital display resolves grade deviations before concrete is placed, reducing costly re-work.
Irrigation & Drainage Grading: Single-slope capability makes the LL300S-X1-PRO a natural fit for ag grading, drainage field prep, and retention basin slope work where consistent fall-per-foot matters across large areas.
Utility & Pipeline Trenching: Maintain consistent invert grades along trench runs. The long working diameter ensures the receiver picks up the beam reliably even when working at extended distances from the instrument.
Compatible Accessories
- Spectra Precision HL450 Replacement Receiver
- Spectra Precision RC601 Wireless Remote Control
- Spectra Precision NiMH Rechargeable Battery Pack
- Heavy-Duty Contractor Tripod
- Grade Rod Clamp & Receiver Bracket
- Replacement Tenths Grade Rod
Related Guides
- How to Set Single-Slope Grade with the LL300S
- HL450 Receiver Setup & Sensitivity Guide
- Rotary Laser Level Buyer's Guide for Contractors
- Using a Wireless Remote on a Grade Laser: Tips & Best Practices
Frequently Asked Questions
- Can the LL300S-X1-PRO handle dual-slope grading?
- No. The LL300S is a single-slope laser, meaning it grades along one axis at a time. For dual-slope applications—such as crowned road grading or two-way drainage pads—consider the Spectra Precision LL500 series, which supports simultaneous X and Y axis slopes.
- What is the wireless remote range and what functions does it control?
- The included remote operates up to 200 feet (60 m) from the instrument. It allows the operator to adjust slope percentage, change rotation speed, raise or lower elevation, and activate the out-of-level alarm reset—all without returning to the laser.
- Is the HL450 receiver compatible with other Spectra Precision lasers?
- Yes. The HL450 is compatible with most Spectra Precision and Trimble red-beam rotary lasers. If you own other lasers in the LL300, LL400, or LL500 families, the HL450 can serve as a cross-platform receiver on those instruments as well.
- How long does the rechargeable battery pack last on a full charge?
- Under typical operating conditions at moderate rotation speed, the included NiMH rechargeable pack delivers up to 100 hours of runtime. Heavy use at maximum rotation speed or in cold-weather conditions will reduce runtime; a spare battery pack is recommended for multi-day pours or remote sites without reliable charging access.
Why This Equipment
Auto Self-Leveling
Compensates for job site movement and setups — no manual leveling required.
Long Range
Reach 2,600+ ft with a receiver — covers large pads and site-wide grading without moving.
IP55+ Protection
Dust-tight and water jet resistant — built for outdoor construction in any weather.
Radio Remote
Change grade or elevation from the cab or anywhere on site without walking back.
The right rotary laser pays for itself in weeks.
A grade checker costs $600–800 per day. A quality rotary laser setup eliminates that cost indefinitely — and works faster. One operator with a good laser and receiver can cover ground that used to take a two-person crew.
The gap between a budget unit and a professional-grade one shows up in the field: self-leveling range on uneven pads, IP55+ protection through rain and dust, and radio remote control so you're not walking back to the instrument every time the job moves.
Express Tools is an authorized dealer with genuine, factory-fresh inventory and same-day shipping on in-stock units. We know this equipment and can answer spec questions before you order.
Specifications
Technical Specs
Manufacturer data and field-verified measurements.
| Laser Class | Class IIIa / Class 3R, red beam |
|---|---|
| Slope Range | 0–25% single axis |
| Self-leveling Range | ±5° automatic |
| Working Diameter | Up to 2,600 ft (800 m) with HL450 receiver |
| Accuracy | ±1/16 in at 100 ft (1.5 mm at 30 m) |
| Remote Control Range | Up to 200 ft (60 m) |
| Battery Runtime | Up to 100 hours (rechargeable NiMH pack included) |
| IP Rating | Dustproof and waterproof construction for outdoor use |
| Rotation Speed | 100, 300, or 600 RPM selectable |
| Grade Range | 0–25% single axis |
| Working Range | Up to 2,600 ft (800 m) with HL450 receiver |
| Remote Control | Up to 200 ft (60 m) |
| Battery Life | Up to 100 hours (rechargeable NiMH pack included) |
Built for Spectra Precision equipment owners
Log every grade shot from this laser
Gradelog turns your rotary laser workflow into documented, defensible field records — grade shots, photos, and as-builts tied to each job.
- Grade shot logging with cut/fill
- Calibration reminders for this instrument
- AI field assistant for setup questions
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Spectra Precision LL300S-X1 PRO Laser Package - Rechargeable, HL450 Receiver, Remote, TENTHS-Rod, HD Tripod and Small Case
$1545.00

Free 30 days with every Express Tools purchase
Your equipment. Your data. All in one place.
Gradelog is the field-execution platform built for grading and earthwork crews. Log grade shots, track cut/fill, document phases with photos, and generate as-built reports — from the cab to the office.
- Grade shots & cut/fill tracking per job
- Photo documentation by phase, task, and equipment
- As-built reports ready for inspector sign-off
- AI field assistant — troubleshoot on the jobsite

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