The Topcon 1051612-22-K2-LS-B200W-MM is a purpose-built excavation package that puts real-time cut/fill grade information directly in front of your machine operator — without the cost of a full 3D GPS system. Pairing the field-proven RL-HV2S dual grade rotating laser with the LS-B200W wireless machine-mounted receiver and the LS-100D handheld rod receiver, this kit covers both cab-based grading and traditional grade rod work on the same job. Whether you're cutting utilities, benching pads, or maintaining slope on a drainage channel, this system delivers the accuracy and flexibility that working contractors depend on.
System Overview & Jobsite Applications
At the core of this package is the RL-HV2S, a self-leveling dual-grade laser capable of projecting a precisely inclined plane in both the X and Y axes simultaneously — ideal for crowned roads, sloped pads, and complex grading profiles. The LS-B200W receiver mounts directly to the boom or blade of an excavator or dozer, transmitting grade data wirelessly to an in-cab digital display. Operators get instant visual feedback on cut and fill without stopping to check grade manually, tightening cycle times and reducing over-excavation. The included LS-100D handheld receiver keeps your rod crew productive alongside the machine, confirming elevations, setting offsets, and checking finished grade without interrupting machine operation.
Key Specifications
- Laser Model: Topcon RL-HV2S Self-Leveling Dual Grade Rotating Laser
- Grade Range: ±10% on both axes simultaneously
- Leveling Accuracy: ±10 arc seconds automatic self-leveling
- Operating Range: Up to 800m diameter (single receiver)
- Machine Receiver: LS-B200W Wireless Machine-Mounted Receiver
- Wireless Transmission: Integrated wireless link between LS-B200W and in-cab display (no cable runs on machine)
- Handheld Receiver: LS-100D with digital numeric readout and audible grade indication
- Mounting: Magnetic mount included for tool-free setup on steel machine components
- IP Rating: Dust and water resistant construction on all components
- Power: Rechargeable battery system; runtime suitable for full shift operation
What's in the Kit
- Topcon RL-HV2S Dual Grade Self-Leveling Rotating Laser
- LS-B200W Wireless Machine-Mounted Grade Receiver
- In-cab digital display unit for LS-B200W
- LS-100D Handheld Rod Receiver
- Magnetic mount for machine receiver attachment
- Rechargeable battery packs and chargers
- Carrying case for transport and storage
- Operator manual and quick-start documentation
Job Applications
Utility Trench Excavation: Mount the LS-B200W to the excavator boom and dial in your design slope on the RL-HV2S. The operator reads grade continuously in the cab, keeping invert elevation consistent through the full run without repeated manual checks.
Building Pad Preparation: Use the dual-grade capability to set a two-direction fall on a commercial slab or parking lot subgrade. The handheld LS-100D lets your grade checker verify corners and edges independently while the machine works the field.
Road Subgrade & Crowned Surfaces: Program cross-slope and longitudinal grade simultaneously on the RL-HV2S. Dozer operators maintain consistent crown profile across the full width of the road without stopping to pull a string line.
Drainage Channel & Swale Grading: Set a consistent channel fall rate and let the excavator operator track grade in real time. Reduces over-digging and limits material haul-off on tight-margin earthwork contracts.
Compatible Accessories
Frequently Asked Questions
- Does the LS-B200W require a cable connection to the in-cab display?
- No. The LS-B200W uses an integrated wireless link to transmit grade data to the in-cab display unit, eliminating cables across pivot points and machine joints. This significantly reduces setup time and wear-related maintenance on the receiver system.
- Can this package handle two different slopes at the same time?
- Yes. The RL-HV2S is a dual-grade laser, meaning it can be set to independent X-axis and Y-axis grades simultaneously. This is particularly useful for crowned road subgrades, sloped pads with directional drainage, and any surface requiring a compound fall.
- Is the LS-100D handheld receiver usable at the same time as the machine receiver?
- Yes. The LS-100D operates independently on the same laser plane as the LS-B200W, so your grade checker can work alongside the machine without any interference or system switching. Both receivers read from the same rotating laser simultaneously.
- What is the effective working range of this system on a large site?
- The RL-HV2S has an operating diameter of up to 800 meters with a single receiver under normal conditions. For most excavation and grading applications, a single instrument setup will cover the full working area of one machine through an entire shift without repositioning.
Frequently Asked Questions
Does the LS-B200W require a cable connection to the in-cab display?
No. The LS-B200W uses an integrated wireless link to transmit grade data to the in-cab display unit, eliminating cables across pivot points and machine joints. This significantly reduces setup time and wear-related maintenance on the receiver system.
Can this package handle two different slopes at the same time?
Yes. The RL-HV2S is a dual-grade laser, meaning it can be set to independent X-axis and Y-axis grades simultaneously. This is particularly useful for crowned road subgrades, sloped pads with directional drainage, and any surface requiring a compound fall.
Is the LS-100D handheld receiver usable at the same time as the machine receiver?
Yes. The LS-100D operates independently on the same laser plane as the LS-B200W, so your grade checker can work alongside the machine without any interference or system switching. Both receivers read from the same rotating laser simultaneously.
What is the effective working range of this system on a large site?
The RL-HV2S has an operating diameter of up to 800 meters with a single receiver under normal conditions. For most excavation and grading applications, a single instrument setup will cover the full working area of one machine through an entire shift without repositioning.
