The Spectra Precision HV302GC-X21 is a professional-grade dual-axis laser level built for contractors who demand reliable horizontal and vertical reference lines across interior and exterior jobsites. This factory-bundled X21 package includes the HL760 laser receiver, RC601 remote control, tenths-graduated grade rod, heavy-duty tripod, and a rugged carrying case — delivering a fully job-ready system out of the box. Whether you're setting finish floors, plumbing walls, or shooting exterior grades, the HV302GC-X21 has the range and precision to get it done right.
Complete Dual-Axis Laser System for Contractors
The HV302GC projects simultaneous horizontal and vertical red beam planes, giving layout crews a full cross-line reference without repositioning the instrument. With a self-leveling range of ±5° and automatic compensation, setup time on unlevel surfaces is dramatically reduced. The unit delivers a working range of up to 200 feet in diameter indoors and pairs with the included HL760 receiver to extend that range to 2,000 feet on open exterior sites. The RC601 wireless remote allows single-operator grade and alignment control from up to 100 feet away — eliminating the need for a second person during solo layout tasks.
Key Specifications
- Laser Class: Class IIIa, 635nm red beam
- Self-Leveling Range: ±5°
- Accuracy: ±1/16 in. at 100 ft (±1.5mm at 30m)
- Indoor Range: Up to 200 ft diameter
- Outdoor Range (with receiver): Up to 2,000 ft diameter
- RC601 Remote Range: Up to 100 ft
- Battery Life: Up to 30 hours (4x AA alkaline)
- IP Rating: IP54 dust and splash resistant
- Mounting: 5/8-11 thread, compatible with standard tripods
What's Included in the X21 Kit
- HV302GC — Dual-axis self-leveling red beam laser
- HL760 Laser Receiver — Extended outdoor detection with grade indication
- RC601 Wireless Remote Control — Single-operator control up to 100 ft
- Tenths-Graduated Grade Rod — Direct elevation and grade readings in the field
- Heavy-Duty Adjustable Tripod — Stable platform for consistent elevation setups
- Protective Carrying Case — Organized, padded storage for the complete system
- 4x AA Batteries and operator documentation
Jobsite Applications
Interior Layout & Finish Work: Project a full horizontal plane across walls, floors, and ceilings for tile layout, drop ceiling grids, cabinet installation, and partition framing — all from a single instrument position.
Exterior Grade & Drainage: Pair the HV302GC with the HL760 receiver and tenths rod to shoot site grades, verify drainage slopes, set footing elevations, and check finish grades across large open areas up to 2,000 ft in diameter.
Plumb & Vertical Alignment: The vertical beam plane handles column plumb checks, window and door alignment, curtain wall layout, and any application requiring a true vertical reference over height.
Solo Contractor Operations: The RC601 remote enables a single operator to adjust the laser, confirm grade, and lock positions without walking back to the instrument — saving time on small crews and solo projects.
Compatible Accessories
- HL760 Replacement Laser Receiver
- RC601 Replacement Remote Control
- Spectra Precision Laser Target Plates
- Replacement AA Battery Pack (4-pack)
- Spectra Precision Heavy-Duty Tripod
- Graduated Grade Rod Replacement
Related Guides
- How to Set Up a Dual-Axis Laser Level for Interior Layout
- Using a Laser Receiver for Exterior Grade Work
- Red Beam vs. Green Beam Lasers: Which Do You Need?
- Spectra Precision Laser Level Buyer's Guide
Frequently Asked Questions
- Can the HV302GC-X21 be used outdoors without additional accessories?
- The HV302GC can be used outdoors, but bright sunlight significantly reduces red beam visibility. For outdoor applications, the included HL760 receiver is strongly recommended to reliably detect the beam at distances beyond 50 feet and in direct sunlight conditions.
- Does the HV302GC self-level automatically?
- Yes. The HV302GC features automatic self-leveling within a ±5° range using an internal compensator. If the instrument is placed on a surface that exceeds this range, an out-of-level alarm activates to alert the operator before any readings are taken.
- What is the difference between the HV302GC and the HV302GC-X21?
- The HV302GC is the base laser unit only. The X21 designation indicates this is the complete package bundle, which adds the HL760 receiver, RC601 remote control, tenths grade rod, heavy-duty tripod, and carrying case — everything needed to begin work immediately on arrival.
- Is the HV302GC compatible with a standard surveying tripod?
- Yes. The HV302GC features a standard 5/8-11 threaded base mount, making it compatible with virtually all contractor and surveying tripods on the market, including the tripod included in this X21 kit.
Frequently Asked Questions
Can the HV302GC-X21 be used outdoors without additional accessories?
The HV302GC can be used outdoors, but bright sunlight significantly reduces red beam visibility. For outdoor applications, the included HL760 receiver is strongly recommended to reliably detect the beam at distances beyond 50 feet and in direct sunlight conditions.
Does the HV302GC self-level automatically?
Yes. The HV302GC features automatic self-leveling within a ±5° range using an internal compensator. If the instrument is placed on a surface that exceeds this range, an out-of-level alarm activates to alert the operator before any readings are taken.
What is the difference between the HV302GC and the HV302GC-X21?
The HV302GC is the base laser unit only. The X21 designation indicates this is the complete package bundle, which adds the HL760 receiver, RC601 remote control, tenths grade rod, heavy-duty tripod, and carrying case — everything needed to begin work immediately on arrival.
Is the HV302GC compatible with a standard surveying tripod?
Yes. The HV302GC features a standard 5/8-11 threaded base mount, making it compatible with virtually all contractor and surveying tripods on the market, including the tripod included in this X21 kit.