David White SitePRO 27-RD-202 Digital Readout Receiver with Large Capture Height

The David White SitePRO 27-RD202 is a professional-grade rotary laser detector engineered for contractors who need fast, reliable beam acquisition across large jobsites and in challenging ambient light conditions. Featuring an oversized 5-inch capture window and a dual-sided digital readout, this receiver eliminates the guesswork and repositioning delays that slow grading, excavation, and site layout operations. Whether you're working in direct midday sun or spanning long distances from your rotary laser, the RD202 delivers the consistent performance that professionals depend on.

Overview & Jobsite Applications

Standard laser detectors often fall short on active construction sites where bright sunlight, dust, and extended working distances reduce beam sensitivity. The David White RD202 is built to overcome these limitations with a larger detection window and advanced signal processing that locks onto rotating laser beams quickly and accurately. The receiver mounts to grade rods and machine masts via its integrated rod clamp and is compatible with virtually all rotating laser brands on the market, making it a versatile addition to any survey or grading crew's toolkit.

Key Specifications

• Model: David White SitePRO 27-RD202
• Capture Window Height: 5 inches (127 mm)
• Detection Range: Up to 2,000 feet diameter (with compatible rotary laser)
• Display: Dual-sided digital LCD readout with grade deviation indication
• Audio: Variable-pitch audible tone for grade indication
• Accuracy: ±1/16 inch at 100 feet
• Power: 2 x AA batteries
• Battery Life: Approximately 80 hours
• Operating Temperature: -4°F to 122°F (-20°C to 50°C)
• Compatibility: All major rotating laser brands (red and green beam)
• Mount: Integrated rod clamp with 1-5/8 inch jaw capacity

Key Features

• 5-Inch Oversized Capture Window: Twice the detection area of standard receivers, reducing beam search time on grade rods and machine masts
• Dual-Sided Digital Readout: Grade deviation displayed on both sides of the detector so operators and equipment can read simultaneously without repositioning
• Variable-Pitch Audio Tones: Distinct tones for above, on-grade, and below-grade positions allow hands-free operation during grading runs
• Bright Daylight Performance: Enhanced photosensor array maintains reliable acquisition even in direct sunlight at extended distances
• Rugged Construction: Impact-resistant housing rated for jobsite conditions including dust, vibration, and incidental water exposure
• Universal Compatibility: Works with virtually all rotating laser levels including red and green beam models from David White, Spectra, Topcon, Leica, and others
• Long Battery Life: Up to 80 hours on 2 AA batteries minimizes downtime on multi-day projects

Job Applications

Site Grading & Earthwork: Mount the RD202 to a grade rod or machine mast to establish and maintain consistent cut/fill depths across large grading areas. The 5-inch window ensures quick beam pickup when moving between stations.

Concrete Flatwork & Screeding: Use the digital readout and audio tones to maintain precise slab elevation during concrete pours. The dual-sided display lets both the screed operator and a helper monitor grade simultaneously.

Drainage & Pipeline Installation: Maintain consistent fall grades for storm sewer, sanitary sewer, and drainage pipe runs by referencing the RD202 at each pipe joint location.

Foundation Layout & Excavation: Verify excavation depths and footing elevations quickly against a rotating laser benchmark, speeding up inspection checkpoints without pulling the crew off equipment.

Compatible Accessories

• David White SitePRO Rotary Laser Levels
• Aluminum Grade Rods & Leveling Rods
• Detector Carrying Cases & Holsters
• Machine Control Mast Brackets
• Replacement AA Batteries (Bulk Pack)

Related Guides

• How to Choose the Right Laser Detector for Your Rotary Laser
• Setting Up a Rotating Laser for Site Grading: Step-by-Step
• Rotary Laser vs. Grade Laser: Which Do You Need?
• Extending Laser Detector Range on Large Jobsites

Frequently Asked Questions

Is the David White RD202 compatible with other brands of rotary lasers?

Yes. The SitePRO 27-RD202 is designed to work with virtually all rotating laser levels on the market, including red and green beam models from Spectra Precision, Topcon, Leica, DeWalt, and others. It detects the pulsed beam signal used by all major manufacturers.

What is the maximum working range of the RD202 detector?

Working range depends on the rotary laser being used. Paired with a compatible professional-grade rotary laser, the RD202 can reliably detect the beam at distances up to approximately 2,000 feet in diameter under typical conditions. Bright direct sunlight may reduce effective range; the 5-inch capture window helps maintain performance in these situations.

Can the RD202 be used on machine control or grading equipment?

Yes. The integrated rod clamp accommodates mast diameters up to 1-5/8 inches and can be secured to machine control masts on motor graders, dozers, and skid steers. For dedicated machine control applications, verify compatibility with your machine control system manufacturer.

How long do the batteries last and what type does it use?

The RD202 operates on 2 standard AA batteries with an approximate battery life of 80 hours under normal use. AA batteries are widely available on any jobsite, and the long runtime means you can complete most multi-day projects without a battery change.