High-precision outdoor rotating laser level with automatic vertical alignment and dial-in slope functions. Engineered to maintain accuracy in harsh jobsite conditions with ±0.02 in at 33 ft precision and operating range up to 1640 ft diameter. Features robust construction meeting US Military standards (MIL-STD-810G) with shock-absorbing handles and IP66 protection for reliable performance in tough environments. Powered by rechargeable Li-ion batteries that charge in just 35 minutes and are compatible with other Hilti 12V tools.