Brand/Model: Keson RR318N RoadRunner
Product Type: Collapsible distance measuring wheel (mechanical counter)
Measurement Units: Feet & inches (bidirectional counting; subtracts on rollback)
Maximum Range: Up to ~9,999 ft 11 in (single trip), then rolls over
Resolution: Fine, easy-read mechanical counter (top-mounted quick-reset trigger)
Wheel Tread: All-terrain, debris scraper/shield included
Handle/Controls: Ergonomic grip with trigger reset; integrated kickstand
Folding Mechanism: Quick-fold shaft for compact transport/storage
Material (Wheel): Impact-resistant polymer rim with molded tread
Material (Frame/Shaft): Metal shaft (steel/aluminum mix) with polymer handle
Material (Counter Housing): Durable polymer with clear window
Weight: ~3.0 lb (approx.; varies slightly by production)
Dimensions (Wheel Diameter): ~12 in (approx.)
Dimensions (Overall, In-Use): ~38–42 in handle height (approx.)
Dimensions (Folded for Storage): ~20–24 × 12 × 6 in (L×W×H, approx.)
Operating Conditions: Pavement, compacted soil, gravel, short turf; avoid deep mud/long grass for best traction
Accuracy Notes: For highest repeatability, keep steady pace, start/stop at the same point on the wheel, and clear debris from tread/scraper
Typical Applications: Estimating, layout, line striping, landscaping, utilities, general construction