The Spectra Physics 601568 GL412N is a single-slope laser device designed for construction and surveying applications, equipped with a rechargeable battery system and includes a tripod and measuring rod for immediate use. This measuring tool projects a highly visible laser line for precise determination of slopes and inclinations with consistent accuracy across various job sites. The laser device operates with a range of up to 30 meters with an accuracy of ±2 mm at 10 meters, making it suitable for tasks such as drainage installation, formwork work, and foundation leveling. It features an automatic self-leveling function within a range of ±4 degrees, with an alert indicator for leveling exceedance to ensure reliable measurements. The housing has an IP54 rating, providing protection against dust and splashes, enhancing durability for outdoor use. The rechargeable lithium-ion battery allows for approximately 10 hours of continuous operation on a full charge, with a charging time of 3 hours via the included USB cable. The laser head measures 85 mm in diameter and 120 mm in height, weighing 450 g, while the aluminum tripod extends from 1.2 m to 1.8 m and weighs 2.1 kg. The measuring rod is 2 meters long with clear metric markings. This tool is designed for professionals who require reliable slope measurement functions with practical accessories for on-site readiness.