SightPRO 31-PS301 Contractor 3 Foot Spoked Measuring Wheel - Feet, Inches

The SitePRO 31-PS301 is a professional-grade, all-steel measuring wheel engineered for contractors, surveyors, and utility crews who need reliable distance measurement on the most demanding terrain. With an 11.5-inch steel-spoked wheel delivering a precise 3-foot circumference, the PS301 is built to handle what plastic and rubber wheel measuring tools simply cannot — rocky fields, rail corridors, gravel access roads, and active industrial job sites where durability is non-negotiable.

Overview & Jobsite Applications

Measuring wheels are essential field instruments for any project requiring fast, repeatable linear measurement without total station setup time. The PS301 excels in open-terrain environments where GPS is impractical or overkill, and tape measures are too slow. Its all-steel construction eliminates wheel deformation and counter-slip errors that plague lighter-duty units under heavy daily use. The folding handle and included wheel stand make it easy to transport and store between site visits, while protecting the precision counter mechanism when the tool is at rest.

Key Specifications

• Model: SitePRO 31-PS301
• Wheel Diameter: 11.5 inches (steel spoked)
• Wheel Circumference: 3 feet per revolution
• Construction: All-steel frame, handle, and wheel
• Counter Type: Mechanical revolution counter with reset
• Measurement Units: Feet and fractions
• Handle: Folding design for compact transport
• Includes: Wheel stand for upright storage

Key Features

• All-Steel Wheel Construction: Steel spokes and rim resist deformation on rocky, debris-laden, and high-traffic surfaces where polymer wheels crack or flatten
• 3ft Circumference for Easy Math: Each revolution equals exactly 3 feet, simplifying field calculations and reducing transcription errors
• Precision Mechanical Counter: Durable counter registers distance with each wheel revolution and resets cleanly between measurements
• Folding Handle: Collapsible design reduces transport length and fits in truck beds, vans, and equipment cages without snagging gear
• Wheel Stand Included: Keeps the PS301 upright on uneven surfaces, preventing counter damage and protecting the wheel between uses
• Heavy Gauge Steel Frame: Resists bending and torque from rough terrain pushing and side-loading during long measurement runs

Job Applications

Utility & Pipeline Mapping: Measure trench runs, right-of-way corridors, and buried infrastructure alignments across open land where surface conditions vary dramatically. The steel wheel rolls cleanly over gravel, packed dirt, and loose rock without bouncing or deflecting.

Large-Acreage Surveying & Boundary Work: Cover hundreds of feet quickly when establishing preliminary boundaries, staking lot lines, or verifying recorded distances in the field. The 3ft-per-revolution circumference keeps tally math simple on long runs.

Rail & Transportation Corridor Work: Ballast, rail ties, and trackside gravel are brutal on standard measuring wheels. The PS301's steel wheel handles these surfaces without degrading over a single shift, making it a reliable choice for railroad and DOT field crews.

Industrial Site & Demolition Layout: On active industrial sites with concrete debris, metal shavings, and rough pad surfaces, the all-steel construction withstands abuse that would destroy a plastic-wheeled unit within weeks.

Compatible Accessories

• SitePRO Carrying Case for Steel Measuring Wheels
• SitePRO Replacement Counter Mechanism
• SitePRO Measuring Wheel Replacement Wheel Assembly
• Field Marking Flags & Stakes for Survey Layout

Related Guides

• How to Choose the Right Measuring Wheel for Your Job Site
• Steel vs. Plastic Measuring Wheels: When Material Matters
• Field Measurement Best Practices for Utility and Survey Crews

Frequently Asked Questions

Is the PS301 suitable for use on asphalt and paved surfaces?

Yes. While the PS301 is specifically designed for rough and unpaved terrain, the steel wheel performs reliably on asphalt, concrete, and paved roads as well. Note that on very smooth pavement, a rubber-tired wheel may provide slightly more traction, but the PS301 is fully functional across mixed-surface routes.

What is the maximum measurable distance on the PS301 counter?

The mechanical counter on the PS301 registers distance in feet based on wheel revolutions. Refer to the included documentation for the maximum counter rollover distance. For extended measurement runs, users should note intermediate totals and reset as needed between segments.

Does the folding handle lock securely during use?

Yes. The PS301's folding handle locks into the extended position during operation to prevent accidental collapse mid-measurement. Always verify the handle is fully locked before beginning a measurement run on uneven ground.

Can the PS301 counter be switched between feet and meters?

The PS301 is configured for feet measurement based on its 3-foot wheel circumference. It is not a dual-mode feet/meters unit. For metric measurements, conversion calculations would need to be applied to the foot-based readings recorded in the field.