Spectra Precision HL450 Laser Receiver with Staff Holder. The Trimble Spectra Precision HL450 Laser Receiver is an easy-to-use tool that accurately measures elevations across the site, and is ideal for use with any rotating transmitter. The HL450 Features Digital Readout of Elevation, 10.2 cm Sensing Range and Anti-Strobe Sensor. A highly versatile receiver for basic and advanced levelling and aligning applications.
» View More