The Topcon RL-H5B is a tough, reliable self-leveling horizontal rotary laser ideal for construction, grading, and excavation projects. It offers an extended working range of up to 2,600 ft (800m) diameter with the included LS-80X receiver, delivering accuracy of ±20 arc seconds (±1/8 inch at 100 ft). Electronic self-leveling engages quickly within a ±5° range, with automatic rotation shutoff if the unit is disturbed to avoid errors. Powered by 4 D-cell alkaline batteries (not included) for up to 100 hours of runtime, it features an IP66 rating for full dustproof and water-resistant protection on demanding job sites. The MD-RL-H5B Inch Kit provides everything needed for immediate use: RL-H5B laser, LS-80X receiver with rod clamp, heavy-duty aluminum tripod, 16ft telescoping grade rod scaled in inches, and a durable hard carrying case. This kit is a cost-effective choice for professionals needing dependable long-range performance Long-Range Precision: Up to 2,600 ft (800m) diameter working range with ±20 arc seconds accuracy using the included LS-80X receiver Quick Self-Leveling: Electronic leveling in seconds within ±5° range; automatic shutoff on out-of-level detection prevents mistakes Ready-to-Use Kit: Includes LS-80X receiver with clamp, sturdy aluminum tripod, 16ft inch-scaled telescoping grade rod, and protective carrying case Job Site Tough: IP66 rated for complete dust and water resistance in harsh conditions Versatile for Construction: Ideal for site leveling, grading, excavation, foundations, septic installation, and layout tasks Style Laser Item Weight 28.9 pounds Part Number 1035257-01_KIT Manufacturer Topcon Batteries Included No Batteries Required Yes Product Dimensions 60 x 12 x 14 inches Item Package Quantity 1