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Large Optical Reference Survey Prism (62mm)

Large Optical Reference Survey Prism (62mm) with mounting bracket & rain hood, for use with Topcon, Sokkia, Leica, Trimble and other total stations


Availability: 76 in stock

Product Information

Large Optical Prisms from Specto Technology

This large optical survey monitoring prism comprises of a high quality 62mm diameter prism inside a plastic housing, a plastic rain/sun hood and an aluminum bracket and base.

It is well suited for use as a reference prism in an automated total station network as it allows for longer, more accurate shots than a standard-sized prism.

It can also be used as a monitoring prism within an AMTS network when longer shots or greater accuracy is required.

We carry stock of Large Optical Prisms. Same-day shipping or pickup is available!


  • Made from light weight aluminum, plastic & K9 glass
  • Includes rain/sun hood
  • 2 second accuracy
  • -40mm offset


  • Allows for longer shots while maintaining accuracy
  • Easy to install
  • Also compatible with survey poles/rods


  • Reference/backsight points in an automated total station network
  • Monitoring locations where long shots are required

Helpful Videos


Large Optical Prism Datasheet Prisms for Total Stations Comparison Brochure



User Manual

Technical Solutions