Trimble MT1000 Active Track Prism, for S, SPS, RTS series Robotic Total Stations
Trimble MT1000 MultiTrack prism for Trimble robotic total stations with Active Tracking technology.
Active prisms use an integrated 360 degree ring of LED's that help Trimble robotic total stations track you and only you. The MT1000 can also be used in passive-mode for more precise vertical measurements or if the battery fails. 20mm prisms with 5" prism accuracy.