The Milwaukee M18™ 1200 m Auto Dual‑Grade Rotary Laser with ONE‑KEY™ offers unmatched precision and workflow efficiency. Boasting automatic dual‑grade matching up to 12.5 % in both X and Y axes, ±5° self‑levelling within 10 seconds, and ±1.6 mm accuracy at 30 m, it’s built for high‑performing grading tasks . Its rugged rubber‑overmould housing meets IP66 standards, survives 1.5 m drops, andAlert bump detection and strobe‑light protection ensure accuracy in challenging job site conditions . With the RD1200 detector, it reaches a 1200 m working range and includes a back‑and‑front lighted display plus remote slope adjustment. Powered by an M18 B5 battery, it lasts over 70 hours and integrates ONE‑KEY™ for cloud‑based tracking, remote locking, and tool reporting