Trimble's Spectra Precision HR300 and HR1000 laser receivers are an extension of the company's line and positioned as "entry-level" instruments. Yet, these new receivers are contractor-grade and designed to handle a variety of interior and exterior jobs, including marking walls and floors, leveling concrete forms and providing elevation and alignment control over moderately sized jobs. For expanded versatility, the receivers can be positioned on a rod and secured with an easy-to-use clamp.