Topcon RL-200 1S Single Slope Laser Level Package with LS-80X Receiver – Model 314910712 (Alkaline)

Purpose-Built Single Slope Laser for Grading, Drainage, and Foundation Work

The Topcon RL-200 1S (Model 314910712) is a contractor-grade single-axis rotary laser engineered for professionals who need reliable, long-range grade control without the complexity or cost of a dual-slope instrument. Paired with the LS-80X laser receiver, this complete kit delivers the accuracy and range demanded by site grading, parking lot construction, building foundations, and drainage layout. Whether you're a general contractor, excavation specialist, or concrete flatwork crew, the RL-200 1S gives you a dependable tool that sets up fast and works hard all day on standard alkaline batteries.

Overview and Jobsite Applications

Designed for single-slope applications, the RL-200 1S projects a self-leveling rotating laser beam across a working diameter of up to 2,600 feet, making it well-suited for large open sites. Its intuitive controls and robust housing make it a go-to instrument for crews who need a straightforward, no-fuss grade laser that performs consistently in real-world jobsite conditions. The LS-80X receiver extends usability in bright sunlight and windy conditions where the naked eye cannot pick up the beam.

Key Specifications

• Model Number: 314910712
• Grade Capability: Single slope (single axis)
• Working Diameter: Up to 2,600 ft (800 m)
• Self-Leveling Range: ±5°
• Grade Range: 0% to ±10%
• Accuracy: ±1/16 in at 100 ft
• Rotation Speed: 600 RPM
• Power Source: Alkaline D-cell batteries (no proprietary packs required)
• Battery Life: Up to 100 hours on alkaline D-cells
• IP Rating: Water and dust resistant for outdoor use
• Receiver Included: Topcon LS-80X

What's in the Kit

• Topcon RL-200 1S Single Slope Rotary Laser
• LS-80X Laser Receiver with clamp
• Alkaline D-cell batteries
• Carrying case
• Operator's manual

Job Applications

Site Grading and Earthwork: Set a consistent single-plane grade across large cut-and-fill operations. The 2,600 ft working diameter eliminates the need to reposition the instrument on most residential and light commercial sites.

Parking Lot and Flatwork Layout: Establish precise drainage slopes on concrete and asphalt pours. The RL-200 1S holds grade reliably across the full pour area, reducing costly rework.

Building Foundations and Footings: Use single-slope mode to transfer consistent elevation references around foundation perimeters, keeping footing depths and slab grades in spec from the first stake to the last.

Drainage and Pipe Installation: Dial in pipe fall and swale grades quickly using the LS-80X receiver on a grade rod, giving your crew a fast, repeatable elevation reference across the entire trench run.

Compatible Accessories

• Topcon LS-80X Laser Receiver (replacement)
• Topcon Elevator Tripod for Rotary Lasers
• Topcon Grade Rod and Bracket Kit
• Alkaline D-Cell Battery 4-Pack
• Topcon Instrument Carrying Case

Related Guides

• How to Set Grade with a Single Slope Laser
• RL-200 1S vs RL-200 2S: Which Grade Laser Is Right for Your Job?
• Setting Up the LS-80X Receiver for Optimal Range
• Top Rotary Lasers for Site Grading in 2024

Frequently Asked Questions

What is the difference between the Topcon RL-200 1S and the RL-200 2S?

The RL-200 1S controls grade on a single axis only, making it ideal for straightforward slope applications like drainage swales, parking lots, and building pads. The RL-200 2S adds dual-axis (X and Y) slope control for more complex grading tasks such as cross-slope road construction or dual-pitched surfaces. If your work is primarily single-direction grade, the 1S delivers equivalent performance at a lower cost.

Does the RL-200 1S require a proprietary rechargeable battery?

No. The RL-200 1S runs on standard alkaline D-cell batteries, which are available at any hardware store or job site supply. This eliminates downtime waiting for proprietary battery packs to recharge and keeps operating costs low. Battery life is rated up to 100 hours under normal conditions.

What receiver is included, and can I use a different Topcon receiver?

This kit includes the Topcon LS-80X receiver, which is compatible with the RL-200 1S out of the box. The LS-80X offers a detection window suited for bright outdoor conditions. Other Topcon-compatible receivers such as the LS-100D may also be used, but confirm compatibility with Topcon specifications before substituting.

Is the RL-200 1S suitable for indoor use such as suspended ceiling layout?

The RL-200 1S is optimized for outdoor grade applications with its long working range and alkaline power system. While it can technically be used indoors, contractors performing suspended ceiling, interior wall framing, or finish flooring work typically benefit more from a pipe laser or a self-leveling interior rotary laser with a shorter working range and finer accuracy tolerance. Contact our team for a recommendation matched to your specific application.