Check the listing for details. Spectra Precision HR320 Laser Receiver Detector With Good Bracket. Condition: Used. Listed at 129.00 USD. The Spectra Precision HR320 Laser Receiver Detector is a high-quality piece of equipment designed for precision leveling and alignment tasks. With electronic auto-leveling capabilities, this laser detector/receiver from the trusted brand Spectra Precision ensures accurate results. Featuring a sturdy bracket and the ability to detect trimble and others beam colors, the HR320 is a reliable tool for surveying and measuring applications in various industrial settings.very nice unit clean good bracket.