The Spectra Precision GL412N/GL422N grade lasers, LL400HV laser level and HV302 horizontal/vertical laser from Trimble feature automatic self-leveling, glass lighthouses, IP66 protection rating, metal sunshade and simple keypads. They can withstand drops of 3 feet onto concrete and tripod tip-overs up to 5 feet. The single- and dual-grade lasers have a radio remote that operates from up to 330 feet. The LL400HV long-range exterior laser has a working diameter of 2,600 feet. The HV302 has a high-visibility beam for simultaneous rotating and 90-degree plumb references. 800/527-3771; www.spectralasers.com.
