Professional Grade Control, Two Ways to Mount
The Spectra Precision CR700 is a dual-purpose laser receiver engineered for contractors who demand reliable grade control on the jobsite. Whether you're running a motor grader, a skid steer, or working with a hand level rod, the CR700 adapts to the task. Its extended detection window, audible and visual signals, and rugged sealed housing make it a dependable choice from rough grading through finish work—all in a single unit that doesn't force you to buy separate receivers for machine and rod applications.
Overview and Jobsite Applications
The CR700 is purpose-built for contractors operating laser-guided equipment on grade-sensitive projects. Site prep crews use it on motor grader blades to hold tight tolerances across large pads. Excavation operators mount it to excavator booms or dozer blades for cut-and-fill work. When the machine work is done, the same receiver transitions to a grade rod for spot checks and elevation verification—no swapping units, no recalibration. Its wide detection window captures the laser beam even on uneven terrain where the machine is pitching and rolling, reducing operator corrections and improving overall efficiency.
Key Specifications
- Detection window: 5-inch (127 mm) reception height
- Operating range: up to 2,000 ft (600 m) diameter with compatible rotating laser
- Display: dual-sided LED grade indicators with center dead-band
- Audio: variable-pitch beeper with on-grade tone
- Power: 2 x AA batteries, extended field life
- Ingress protection: sealed housing rated for outdoor jobsite use
- Mounting: integrated magnetic clamp plus rod/bracket adapter
- Dimensions: compact profile for low-clearance machine mounts
- Compatible lasers: Spectra HV302, HV402, GL422N, and most 635 nm red-beam rotating lasers
Key Features
- Dual mounting system — magnetic machine mount and rod clamp included in one unit
- Wide 5-inch detection window catches the beam during equipment motion without constant repositioning
- Dual-sided LED display visible from the cab and ground simultaneously
- Variable-pitch audio signals guide operators to grade without line-of-sight to the display
- Rugged overmolded housing resists dust, vibration, and water exposure on active jobsites
- Fast response mode for dynamic grade control during continuous machine passes
- Dead-band adjustment allows operators to set acceptable grade tolerance for the application
- Long battery life reduces mid-shift interruptions on large grading projects
Job Applications
Parking Lot and Pad Grading: Mount the CR700 to a motor grader blade to maintain consistent cross-slope and finish grade across commercial pads. The wide detection window keeps the receiver locked on the laser plane even as the blade floats.
Road Base and Subgrade Work: Dozer and grader operators use the CR700 to hit subgrade elevations during road base prep. Set your rotating laser, clip on the receiver, and run passes with continuous audio feedback guiding cuts and fills.
Excavation Depth Control: Clamp the CR700 to an excavator boom or stick for trench and footing excavation. Operators read the LED indicators from the cab to control bucket depth without repeated grade checks by hand.
Rod-and-Level Spot Checks: After machine work is complete, slide the CR700 onto a grade rod to verify finished elevations, check drainage slopes, or confirm subgrade before base placement—using the same receiver already on the job.
Compatible Accessories
- Spectra HV402 Rotating Laser — high-visibility transmitter matched to the CR700
- Spectra GL422N Grade Laser — dual-grade rotating laser for slope work
- Machine Mount Mast and Bracket Kit — extended reach for tall blade applications
- Aluminum Grade Rod — 8 ft and 13 ft options for rod-mount receiver use
- Replacement Magnetic Clamp Assembly for CR700
Related Guides
- How to Set Up a Laser Receiver for Motor Grader Grade Control
- Machine Mount vs. Rod Mount Receivers: Choosing the Right Setup
- Rotating Laser and Receiver Compatibility Guide
- Calibrating Your Laser Receiver for Finish Grade Tolerances
Frequently Asked Questions
- Will the CR700 work with lasers from other manufacturers?
- The CR700 is optimized for Spectra Precision rotating lasers but is compatible with most standard 635 nm red-beam rotating lasers from other brands. For best sensitivity and response, pairing it with a Spectra HV or GL series laser is recommended.
- Can I use the CR700 as both a machine receiver and a hand-rod receiver on the same job?
- Yes. The CR700 includes both a magnetic machine clamp and a rod mount adapter, so you can switch between machine-mounted grade control and handheld rod work without purchasing a second unit.
- What is the detection window size and why does it matter on a grader?
- The CR700 has a 5-inch detection window. On a motor grader or dozer, the blade moves up and down with terrain changes. A wider window means the receiver stays locked on the laser beam during those movements, reducing false signals and unnecessary blade corrections.
- How long do the batteries last during a full workday?
- Under typical field conditions, the CR700 delivers extended battery life on two standard AA batteries. Most crews get through a full workday and beyond without a change, though keeping a spare set on the machine is always good practice on long grading projects.
