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Johnson Level Red Dual Slope Rotary Laser System
- $460.00
- Brands Johnson Level
- Product Code: JRT300-RDHV-S
- Availability: In Stock
Johnson Level Red Dual Slope Rotary Laser SystemThe Johnson Level Red Dual Slope Rotary Laser System is a professional rotary laser designed for demanding leveling, grading, and alignment work. With electronic dual-slope capability, the system can establish controlled grades in both the X and Y axes, making it particularly useful for drainage, concrete flatwork, excavation, landscaping, and other ..
High Accuracy Red Dual Slope Rotary Laser for Construction Projects
Johnson Level Red Dual Slope Rotary Laser System
The Johnson Level Red Dual Slope Rotary Laser System is a professional rotary laser designed for demanding leveling, grading, and alignment work. With electronic dual-slope capability, the system can establish controlled grades in both the X and Y axes, making it particularly useful for drainage, concrete flatwork, excavation, landscaping, and other applications where precise slope control is required.
The JRT300-RDHV-S combines a long 4,000-foot outdoor working diameter, automatic electronic self-leveling, multiple rotation speeds, remote operation, and rugged IP67 protection. Its lithium-ion battery system provides up to 21 hours of runtime, making it suitable for extended workdays on demanding jobsites.
Key Features
4,000-Foot Working Diameter: Provides extensive coverage when used with the included laser detector.
Electronic Dual-Slope Control: Allows slopes of up to ±5° on both the X and Y axes, making it suitable for grading and drainage applications.
Automatic Electronic Self-Leveling: Automatically levels the laser within a ±5° range for faster setup.
High Accuracy: Delivers accuracy of approximately ±1/16 inch at 100 feet in horizontal operation.
Five Rotation Speeds: Select from 0, 100, 300, 600, or 1,200 RPM depending on the application.
Four Scan Modes: 0°, 15°, 30°, and 60° scanning angles provide additional control over the visible laser reference.
400-Foot Remote Range: Allows the operator to control the laser from a distance.
One-Person Operation: The included detector and remote make it easier for a single operator to perform leveling and grading work.
IP67 Protection: Designed to withstand dust and temporary water immersion, making it suitable for demanding outdoor jobsites.
6-Foot Drop Resistance: Built to withstand accidental tips and drops from up to 6 feet.
Long Battery Runtime: Two rechargeable lithium-ion batteries provide up to 21 hours of operation.
Product Specifications
| Specification | Details |
|---|---|
| Brand | Johnson Level |
| Model | JRT300-RDHV-S |
| Product Type | Red Dual-Slope Rotary Laser System |
| Leveling Method | Automatic Electronic |
| Laser Color | Red |
| Laser Wavelength | 640 nm ±10 nm |
| Laser Classification | Class 3R |
| Maximum Power Output | <5 mW |
| Horizontal Accuracy | ±1/16 in. at 100 ft. |
| Vertical Accuracy | ±1/8 in. at 100 ft. |
| Interior Range | Up to 200 ft. diameter |
| Exterior Range | Up to 4,000 ft. diameter with detector |
| Remote Range | Up to 400 ft. |
| Self-Leveling Range | ±5° |
| Dual Slope | ±5° |
| Grade Setting | ±8% |
| Rotation Speeds | 0 / 100 / 300 / 600 / 1,200 RPM |
| Scanning Modes | 0° / 15° / 30° / 60° |
| Working Angle | 360° |
| Power Supply | 2 rechargeable Li-ion batteries |
| Battery Life | Up to 21 hours |
| Working Temperature | 14°F to 122°F |
| Tripod Thread | 5/8"-11 |
| IP Protection | IP67 |
| Drop Rating | Up to 6 ft. |
| Warranty | 5 years |
The specifications above are based on Johnson Level's official information for the JRT300-RDHV-S and its associated instruction manual.
Built for Grading and Leveling
The major advantage of this rotary laser is its electronically controlled dual-slope function. Unlike a standard level-only rotary laser, it allows the operator to establish a controlled grade in both axes.
This makes the system particularly useful for:
Drainage projects
Concrete flatwork
Excavation
Site grading
Complex landscaping
Foundation work
Sloped surfaces
General outdoor leveling and alignment
Johnson Level specifically identifies the horizontal self-leveling mode for excavation and concrete applications, while the dual-slope function is intended for drainage, flatwork, and complex landscaping.
Long-Range Outdoor Performance
With the included detector, the JRT300-RDHV-S can cover an outdoor diameter of up to 4,000 feet. This extended range makes it suitable for large jobsites where a shorter-range laser would require frequent repositioning.
For indoor applications, the laser has a range of up to 200 feet in diameter, depending on lighting conditions and visibility.
Multiple Rotation and Scan Settings
The laser provides five selectable rotation speeds:
0 RPM
100 RPM
300 RPM
600 RPM
1,200 RPM
It also provides four scanning modes—0°, 15°, 30°, and 60°—giving the operator greater flexibility when establishing or locating a laser reference.
Rugged Jobsite Construction
The IP67 rating helps protect the laser against dust and water exposure. The unit is also designed with a 6-foot drop rating, providing additional protection against accidental falls and impacts that can occur on active construction sites.
The operating temperature range of 14°F to 122°F allows the system to be used across a broad range of jobsite conditions.
Complete System for One-Person Operation
The JRT300-RDHV-S package includes the equipment needed for professional leveling and grading work:
Rotary laser
Two rechargeable lithium-ion battery packs
Battery charger
Remote control
Two AAA batteries for remote
Laser detector with clamp
Two AAA batteries for detector
Tripod
13-foot grade rod
Target
Hard-shell carrying case
The included detector and remote control allow a single operator to perform many leveling and grading tasks without needing a second person to monitor the laser.
Why Choose the Johnson Level Red Dual Slope Rotary Laser?
The Johnson Level JRT300-RDHV-S Red Dual Slope Rotary Laser System is designed for professionals who need more than basic horizontal leveling. Its combination of 4,000-foot range, ±5° dual-slope control, ±1/16-inch horizontal accuracy at 100 feet, IP67 protection, 6-foot drop resistance, and 21-hour battery life makes it a strong choice for large and demanding construction projects.
For contractors working in excavation, drainage, concrete, grading, landscaping, and site preparation, this system provides the range and slope-control capability needed to establish accurate references efficiently.
Note: Specifications and package contents can change by production run or market. The information above is specifically based on Johnson Level Model JRT300-RDHV-S. Verify the model number and current manufacturer specifications before purchasing.