Check the listing for details. Laser Tracker Drift Nest 1.5" SMR Monument - Adapter Puck for FARO API Leica SMR. Condition: New. Listed at 22.00 USD. LASER TRACKER MONUMENT / DRIFT NEST for 1.5" SMR - Hard Coat Anodized Black, Laser Marked and Serialized. Includes Strong Magnet that is removable. Monuments are intended to be used in connection with a Spherically Mounted Retro-Reflector (SMR), BMR or other ball probes in connection with any laser tracker. Compatible with all types of SMR'S. Serve as a Reference Point for Moving your part or Laser Tracker or Checking System or Part Drift or Expansion or Contraction. Questions or Looking for SMRs to use with the Drift Nests? Check us out on the web. We offer SMRs Manufactured by MetrologyWorks that are Compatible with all Laser Tracker including those produced by FARO, Leica / Hexagon, API. We also have a Full Line of Laser Tracker Tooling and SMR adapters available. Metrologyworks.com