Topcon 314870705 RC-400 Rotary Laser Level Remote Control for RL-200 2S

Command Your Topcon RL-200 2S From Up to 984 Feet Away

The Topcon RC-400 is the purpose-built wireless remote control for the RL-200 2S dual-grade rotary laser, giving machine operators, grade checkers, and site supervisors full command of the laser without ever leaving their position. With a working range of up to 984 feet, the RC-400 eliminates constant trips back to the instrument, letting a single operator run grade adjustments, power functions, and slope settings from the machine cab or anywhere on the jobsite. If you're running a blade, scraper, or motor grader and need to fine-tune grade on the fly, the RC-400 is the tool that makes single-operator efficiency a reality on large earthmoving and site grading projects.

Overview and Jobsite Applications

Designed exclusively for use with the Topcon RL-200 2S, the RC-400 mirrors the full control panel of the laser itself. Operators can adjust X-axis and Y-axis slope angles independently, power the laser on or off, and access all primary functions — all from a compact, durable handheld unit. The RC-400 is built for the rigors of outdoor construction environments, with a rugged housing that holds up to dust, vibration, and the routine abuse of daily site work. Whether you're finishing a parking lot subgrade, cutting a drainage swale, or setting up for a large earthwork pour, the RC-400 keeps you in control without breaking workflow.

Key Specifications

• Compatible Laser: Topcon RL-200 2S Dual-Grade Rotary Laser
• Wireless Operating Range: Up to 984 feet (300 meters)
• Control Functions: Full-function — slope X-axis, slope Y-axis, power on/off, and all primary laser controls
• Slope Adjustment: Remote X and Y axis grade setting directly from the RC-400
• Communication Type: Wireless radio frequency
• Housing: Rugged jobsite-rated enclosure
• Manufacturer Part Number: 314870705
• Model Number: RC-400

Key Features

• 984-foot wireless range enables true single-operator control on large sites
• Adjust dual-axis slope angles remotely without returning to the laser
• Full-function control mirrors all primary RL-200 2S laser panel operations
• Compact, ergonomic design fits comfortably in a cab or vest pocket
• Rugged housing rated for outdoor construction environments
• Reduces operator trips and downtime on machine control and mass grading projects
• Plug-and-play pairing with the Topcon RL-200 2S — no complex setup required

Job Applications

Machine Cab Grade Control: Motor grader and dozer operators can adjust laser slope settings from inside the cab, eliminating the need for a second person at the instrument during finish grading passes.

Large Parcel Site Grading: On expansive grading projects where the laser may be hundreds of feet from the active cut zone, the RC-400 keeps the operator in command without interrupting the grade-checking workflow.

Drainage and Swale Work: Fine-tune X or Y axis slope angles in real time while your rod person or machine is positioned at grade — no back-and-forth required.

Earthwork and Subgrade Prep: Speed up subgrade preparation by allowing on-the-fly slope adjustments as site conditions change, keeping machines moving and reducing idle time.

Compatible Accessories

• Topcon RL-200 2S Dual-Grade Rotary Laser
• Topcon LS-100D Laser Detector / Receiver
• Topcon Laser Tripod and Grade Rod Accessories
• Topcon Carrying Case for RL-200 2S

Related Guides

• How to Set Up the Topcon RL-200 2S for Dual-Grade Applications
• Single-Operator Site Grading: Tips for Using a Laser Remote Control
• Topcon RL-200 2S vs. Competitors: Which Dual-Grade Laser Is Right for You?
• Understanding Rotary Laser Receivers and Remote Controls for Machine Control

Frequently Asked Questions

What lasers is the Topcon RC-400 compatible with?

The RC-400 is designed specifically for use with the Topcon RL-200 2S dual-grade rotary laser. It is not a universal remote and is not compatible with other Topcon laser models. Always verify compatibility before purchasing a remote for your instrument.

What is the maximum operating range of the RC-400?

The Topcon RC-400 has a maximum wireless operating range of up to 984 feet (300 meters). Actual range may vary slightly based on jobsite conditions, obstructions, and environmental interference, but this range is more than sufficient for most commercial grading and earthmoving applications.

Can I adjust slope on both axes using the RC-400?

Yes. The RC-400 provides full remote control of both the X-axis and Y-axis slope settings on the RL-200 2S, allowing you to dial in dual-grade angles from your position on the jobsite without returning to the laser instrument.

Is the RC-400 included with the RL-200 2S, or is it sold separately?

The RC-400 is typically sold as an optional accessory and may or may not be included depending on the RL-200 2S kit configuration you purchase. Check your kit contents or contact our team to confirm whether your RL-200 2S package includes the RC-400 remote.