Will the CT0-C62 bracket fit my aluminum laser rod, or do I need the ash/aluminum version?

The CT0-C62 is designed to accommodate both ash/aluminum hybrid rods and full aluminum laser rods—you don't need different brackets for different rod types. This universal compatibility is built into the OEM design, so one CT0-C62 securely mounts whichever rod type you're running on your HL Series.

Is this an OEM Spectra part, or is it a third-party bracket?

The CT0-C62 is the original equipment manufacturer (OEM) bracket designed and specified by Spectra Precision for HL Series Laserometers. Using authentic OEM accessories maintains your factory warranty, preserves system calibration integrity, and guarantees perfect fit without adapters or workarounds.

What happens if I use a generic bracket instead of the Spectra CT0-C62?

Generic brackets introduce compatibility uncertainty, rod drift risk, and potential measurement errors that can force re-measurement cycles and cost you job-site time. Using non-OEM accessories may also void your Spectra warranty and create liability issues if measurement accuracy is questioned on your work.

Can I use the CT0-C62 as a replacement bracket if my original bracket gets damaged?

Yes, the CT0-C62 is the direct OEM replacement for HL Series rod brackets. If your existing bracket is cracked, bent, or lost, ordering a CT0-C62 gives you an identical factory replacement with no compatibility concerns.

How durable is the all-metal construction in outdoor conditions?

The CT0-C62's all-metal design is engineered for professional-grade durability and resists weather exposure, temperature swings, and the daily impact and vibration typical of active construction work. Metal construction ensures the bracket maintains rigidity and won't degrade from UV exposure or moisture like plastic alternatives.

Do I need tools to install the CT0-C62 bracket on my HL Series system?

The CT0-C62 mounts directly to HL Series Laserometer receivers using the OEM mounting interface—no special tools or adapters are required. Installation is straightforward and takes just minutes without modifications to your system.

Spectra LL300N-PRO Wireless Remote Control

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At a Glance

Product Type: Rod Bracket
Compatible Series: HL Series Laserometer
Material Construction: All-metal
Compatible Rod Types: Ash/aluminum and aluminum laser rods
Accuracy: ±1/16" at 100 ft (1.5mm at 30m)
Self-leveling Range: ±5°

Spectra PrecisionLL300N-PROSKU Spectra Precision CTO-C62New

Rotary Lasers →

Spectra Precision LL300N-PRO Laser Package w/ HL450 Receiver, Remote and Rechargeable Batteries

$948.00

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In Stock·Ships same day before 2 PM CT

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±5° Range

Cover large layout jobs with a ±5° working reach.

±1/16" at 100 ft (1.5mm at 30m) Accuracy

Hold grade with a ±1/16" at 100 ft (1.5mm at 30m) accuracy rating.

Grade Range

Handles ±25% so crews can match design slopes.

Battery Life

Runs on Up to 100 hours with rechargeable NiMH pack for jobsite flexibility.

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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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Genuine equipment sourced straight from manufacturer partners.

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Genuine Gear

Factory-fresh, authentic units with legitimate firmware.

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Quick Answer

What is the Spectra Precision LL300N-PRO?

The Spectra Precision LL300N-PRO Laser Package w/ HL450 Receiver, Remote and Rechargeable Batteries is a Spectra Precision Rotary Laser with ±1/16" at 100 ft (1.5mm at 30m) accuracy, ±5° self-leveling range, and Up to 2,600 ft diameter with HL450 receiver working range. It's available from Express Tools as an authorized Spectra Precision dealer with same-day shipping on in-stock orders.

FIELD APPLICATIONS

What contractors use this rotary lasers for

Grade Control on Cut-and-Fill Operations

Grading contractors use the CT0-C62 to lock detection rods in stable position while the HL Series Laserometer tracks elevation changes across rough terrain. Secure rod mounting prevents drift caused by equipment vibration and uneven ground, ensuring accurate cut-and-fill measurements without re-shooting grades.

Slab Elevation Verification for Concrete Work

Concrete crews mount rods with the CT0-C62 to verify consistent deck elevations during large slab pours. The rigid all-metal bracket eliminates the rod movement that occurs during concrete vibration and finishing, guaranteeing elevation tolerance compliance across the entire pour.

Site Preparation and Earthwork Surveys

Site managers performing elevation surveys across cleared or rough-graded land rely on the CT0-C62 to maintain rod stability across variable ground conditions. The secure mounting ensures repeatable measurements across multiple survey points without requiring bracket re-adjustment.

Replacement Bracket for Fleet Maintenance

Contractors running multiple HL Series systems keep spare CT0-C62 brackets in inventory to minimize downtime if a bracket is damaged or lost on site. Having a replacement readily available ensures your laser systems stay operational without emergency procurement delays.

Mixed Rod Inventory Management

Contractors with both ash/aluminum and aluminum rod types use the CT0-C62 to standardize their bracket fleet across different rod configurations. Single-bracket compatibility simplifies equipment logistics and reduces the number of spare parts crews must track and carry to job sites.

PRODUCT OVERVIEW

Product Description

The Spectra Precision LL300N-PRO is a complete professional rotary laser kit engineered for contractors who need reliable, accurate grade control on demanding job sites. Combining the LL300N-2 self-leveling rotary laser, HL450 digital receiver, RC601 remote control, and a rechargeable battery system, this kit delivers everything a site crew needs to hit grade fast and stay productive all day. Whether you're grading a pad, forming footings, or setting drainage slopes, the LL300N-PRO gives you the tools to work with confidence from the first setup to the last shot.

Professional Rotary Laser for Site Prep, Excavation & Concrete Work

The LL300N-PRO is built around the LL300N-2 laser, a self-leveling single-slope rotary instrument trusted by foundation contractors, grading crews, and concrete finishers across North America. The laser self-levels within ±5° and holds a horizontal accuracy of ±1/16" at 100 feet—tight enough for slab work, tight enough for drainage. The HL450 digital receiver extends working range up to 2,600 feet in diameter, giving large-site crews the coverage they need without repositioning the instrument. The RC601 remote lets a single operator control spin speed, grade mode, and power from up to 200 feet away, cutting out wasted trips back to the instrument.

Key Specifications

Model: LL300N-2 Self-Leveling Rotary Laser
Accuracy: ±1/16" at 100 ft (1.5mm at 30m)
Self-Leveling Range: ±5°
Working Range: Up to 2,600 ft diameter with HL450 receiver
Rotation Speed: 100, 300, or 600 RPM selectable
Single-Axis Grade Range: ±25%
IP Rating: IP66 dust and water resistant
Battery Life: Up to 100 hours with rechargeable NiMH pack
Remote Control Range: RC601 up to 200 ft
Laser Class: Class 3R, 635nm visible red beam

What's in the Kit

LL300N-2 Self-Leveling Rotary Laser — single-axis grade capability, IP66 rated
HL450 Digital Grade Rod Receiver — audio and visual grade indication, adjustable sensitivity
RC601 Remote Control — full instrument control up to 200 ft away
Rechargeable NiMH Battery Pack — up to 100 hours of runtime per charge
Battery Charger — 110V AC wall charger included
Alkaline Battery Adapter — backup power option for remote sites
Carry Case — hard-shell protective case for transport and storage
Rod Clamp — for mounting HL450 to grade rod or story pole

Job Applications

Site Grading & Earthwork: The 2,600 ft working diameter and RC601 remote make the LL300N-PRO ideal for operators running heavy equipment. Set grade, dial in slope, and let the machine operator follow the receiver without a grade checker in the cut.

Concrete Flatwork & Slabs: The ±1/16" accuracy and selectable rotation speeds keep pour crews and screed operators on target. Set up once, work the entire slab without repositioning.

Foundation Layout & Footings: Use the single-axis grade function to transfer elevation around a foundation perimeter or set footing depths consistently across multiple pads on the same project.

Drainage & Utility Trenching: Dial in precise single-axis slope grades for storm drain, sanitary sewer, and irrigation trench work where consistent fall is critical to system performance.

Compatible Accessories

Related Guides

Frequently Asked Questions

Does the LL300N-PRO work in outdoor daylight conditions?: Yes. While the visible red beam is not easily seen by the naked eye in bright sunlight, the HL450 digital receiver picks up the laser signal reliably at distances up to 2,600 feet in full daylight, making it fully capable for outdoor site work in any lighting condition.
Can the LL300N-2 be used for vertical plumb applications?: The LL300N-2 is primarily designed for horizontal leveling and single-axis grade work. It is not optimized for vertical plumb layout. For vertical plane work, a separate pipe laser or dual-axis laser would be the appropriate tool.
What is the difference between the LL300N-PRO and the LL300N-1 kit?: The LL300N-PRO includes the RC601 remote control and rechargeable battery system in addition to the HL450 receiver, making it the more complete package for solo operators and production crews. The LL300N-1 is a more basic kit without the remote or rechargeable batteries.
Is the LL300N-2 covered under warranty?: Spectra Precision backs the LL300N-2 with a 3-year manufacturer warranty covering defects in materials and workmanship. Express Tools is an authorized dealer, so all warranty service is handled through official Spectra Precision service channels.

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.

KIT CONTENTS

What's In The Box

CT0-C62 Rod Bracket

Why Buy This?

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.

TECHNICAL SPECS

Specifications

Technical Specs

Manufacturer data and field-verified measurements.

Product Type	Rod Bracket
Compatible Series	HL Series Laserometer
Material Construction	All-metal
Compatible Rod Types	Ash/aluminum and aluminum laser rods
Accuracy	±1/16" at 100 ft (1.5mm at 30m)
Self-leveling Range	±5°
Working Range	Up to 2,600 ft diameter with HL450 receiver
Rotation Speed	100, 300, or 600 RPM selectable
Grade Range	±25%
IP Rating	IP66 dust and water resistant
Battery Life	Up to 100 hours with rechargeable NiMH pack
Remote Control	RC601 up to 200 ft
Laser Class	Class 3R, 635nm visible red beam