Topcon RL-SV1S Self-Leveling Single Grade Laser RB Kit with LS-80L Receiver and Rechargeable Batteries- 313990709

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At a Glance

Model: Topcon RL-SV1S
Laser Class: Class 3R, 635nm red beam
Self-leveling Range: ±5°
Grade Range: 0% to ±5% single axis
Leveling Accuracy: ±1mm at 10m (±3/32" at 30')
Working Range (with Receiver): 800m diameter

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Topcon RL-SV1S Self-Leveling Single Grade Laser RB Kit with LS-80L Receiver and Rechargeable Batteries

Name: Topcon RL-SV1S Self-Leveling Single Grade Laser RB Kit with LS-80L Receiver and Rechargeable Batteries- 313990709
Brand: Topcon
SKU: 313990709
Price: 1795.00 USD
Availability: InStock

$1795.00

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±5° Range

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

±1mm at 10m (±3/32" at 30') Accuracy

Hold grade with a ±1mm at 10m (±3/32" at 30') accuracy rating.

Grade Range

Handles 0% to ±5% single axis so crews can match design slopes.

Power Source

Runs on Rechargeable battery pack (RB system) for jobsite flexibility.

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Continuous grade control, no stakes

Eliminates grade staking between passes. One operator on the machine vs. 2-3-person conventional crew.

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Genuine equipment sourced straight from manufacturer partners.

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Orders placed before 2 PM CT leave the dock today.

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Factory-fresh, authentic units with legitimate firmware.

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Quick Answer

What is the Topcon RL-SV1S?

The Topcon RL-SV1S Self-Leveling Single Grade Laser RB Kit with LS-80L Receiver and Rechargeable Batteries is a professional-grade rotary laser level designed for construction and grading applications. It features a Class 3R red laser beam with an 800m diameter working range and delivers ±1mm leveling accuracy at 10m. It's available from Express Tools.

FIELD APPLICATIONS

What contractors use this grade lasers for

Motor Grader Control

Automatic blade control for road base and subgrade

Dozer Earthwork

Push-to-grade for rough cut and finish passes

Pipe Trench Grading

Set trench bottom elevation for gravity pipe installation

Drainage Work

Parking lot drainage, swales, retention basins

PRODUCT OVERVIEW

Product Description

The Topcon RL-SV1S RB Kit delivers dependable single-grade horizontal laser control packaged with everything a contractor needs for full-day site operations — including the LS-80L laser receiver and a complete rechargeable battery system. Built for the demands of grading, sitework, concrete flatwork, and drainage layout, the RL-SV1S self-levels quickly, holds calibration in tough conditions, and keeps your crew on grade without interruption. Whether you're running a road base, pouring a slab, or cutting drainage swales, this kit puts precision in your hands from the moment you open the case.

Product Overview

The Topcon RL-SV1S is a professional-grade rotary laser engineered for contractors who need accurate single-slope control across demanding horizontal applications. With a self-leveling range of ±5° and a grade range of ±5%, it handles the majority of site grading scenarios with push-button ease. The RB (Rechargeable Battery) configuration eliminates the recurring cost and downtime of disposable batteries — a practical upgrade for crews running extended shifts or back-to-back jobs. The included LS-80L receiver extends usable range outdoors to 800 meters in diameter, making this kit equally effective on large commercial sites and smaller residential builds.

Key Specifications

Model: Topcon RL-SV1S
Laser Class: Class 3R, 635nm red beam
Self-Leveling Range: ±5°
Grade Range: 0% to ±5% single axis
Leveling Accuracy: ±1mm at 10m (±3/32" at 30')
Working Range (with receiver): 800m diameter
Rotation Speed: 300 / 600 / 1200 RPM selectable
Power Source: Rechargeable battery pack (RB system)
Battery Life: Up to 50 hours per charge (low rotation speed)
Dust & Water Protection: IP66 rated
Operating Temperature: -20°C to +50°C (-4°F to +122°F)
Weight: Approx. 2.7 kg (5.9 lbs) with battery

What's in the Kit

Topcon RL-SV1S single grade rotary laser transmitter
LS-80L laser receiver with rod clamp and carrying case
Rechargeable battery pack (RB system) — replaces standard AA cells
BC-65A battery charger for rapid recharge between job phases
Carrying case for protected transport and storage
Operator's manual and warranty documentation

Job Applications

Site Grading & Earthwork: Establish a precise horizontal plane across cut-and-fill operations, ensuring consistent grade for roads, pads, and site preparation before construction begins.
Concrete Flatwork: Control slab elevation for driveways, warehouse floors, and residential pours. The RL-SV1S accuracy keeps concrete crews on spec and reduces costly callbacks.
Drainage & Utility Layout: Set accurate single-slope grades for storm drain channels, retention basin edges, and utility trench bottoms where proper fall is critical to performance.
Landscape Grading & Athletic Fields: Achieve smooth, consistent slopes for sports field drainage, lawn grading, and hardscape base preparation where a subtle grade makes all the difference.

Compatible Accessories

Frequently Asked Questions

Does the Topcon RL-SV1S RB Kit include everything needed to start working on-site?: Yes. The RB Kit includes the RL-SV1S laser transmitter, LS-80L receiver with rod clamp, rechargeable battery pack, BC-65A charger, and a carrying case. You'll need a laser tripod and grade rod, which are available separately on our site.
What is the effective outdoor range of the RL-SV1S with the LS-80L receiver?: With the LS-80L receiver, the working diameter is 800 meters (approximately 2,600 feet), making it suitable for large commercial grading sites and extended layout operations under bright outdoor conditions.
Can the RL-SV1S be used for sloped applications like drainage or road crowns?: The RL-SV1S supports single-axis grade from 0% to ±5%, which covers the majority of drainage slopes, parking lot grades, and residential grading applications. For dual-axis simultaneous slope control, consider the Topcon RL-SV2S.
How long does the rechargeable battery last, and how do I recharge it?: At low rotation speed (300 RPM), the rechargeable pack delivers up to 50 hours of runtime. The included BC-65A charger restores a full charge typically within a few hours, allowing quick turnaround between job phases or overnight recharging at the shop.

Why This Equipment

Dual Grade Control

Control two slopes simultaneously for crowns, swales, and complex drainage layouts.

Machine Ready

Pairs with machine receivers for dozer, grader, and scraper grade control.

IP67 Rated

Weatherproof for outdoor use in rain, dust, and construction site conditions.

High Accuracy

±0.1mm/m grade accuracy — holds tolerance through a full working day.

Why Buy This?

Continuous grade control. No continuous labor.

Grade stakers cost $50–80/hr and disappear between passes. A dual-slope grade laser installs once and controls your blade automatically — through every cut, every fill, every pass. That's the math that makes grade lasers one of the fastest ROI investments in earthwork.

Professional contractors specify dual-grade systems for a reason: single-grade units work for straight drainage. The moment a job has a crown, a swale, or a complex parking lot slope — you need dual-grade.

Buying from Express Tools means authorized, factory-fresh inventory, legitimate firmware, and technical knowledge when you need it.

TECHNICAL SPECS

Specifications

Technical Specs

Manufacturer data and field-verified measurements.

Model	Topcon RL-SV1S
Laser Class	Class 3R, 635nm red beam
Self-leveling Range	±5°
Grade Range	0% to ±5% single axis
Leveling Accuracy	±1mm at 10m (±3/32" at 30')
Working Range (with Receiver)	800m diameter
Rotation Speed	300 / 600 / 1200 RPM selectable
Power Source	Rechargeable battery pack (RB system)
Battery Life	Up to 50 hours per charge (low rotation speed)
Dust & Water Protection	IP66 rated
Operating Temperature	-20°C to +50°C (-4°F to +122°F)
Weight	Approx. 2.7 kg (5.9 lbs) with battery
Working Range	800m diameter
Power	Rechargeable battery pack (RB system)
IP Rating	IP66 rated