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: 130 in stock

Product Information

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
  • 62mm Prism glass Ø62.2±0.1 H47±0.2
  • Angle accuracy 54°44ʹ±20ʹ
  • Silver coated prism in yellow water seal canister
  • Rain hood included
  • Prism accuracy: 2 second
  • Prism glass material: K9
  • Prism off set: -40mm
  • Measuring range: 1800m – 3500m, minimum range: 1.5m
  • Wavelength: 635nm + 5nm, 5mw
  • Adapter thread: 5/8-11
  • Outer dimensions: 160mm x 115mm x 110mm
  • Net weight: 660 g
  • Gross weight: 740 g


  • 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


Large Optical Prism Datasheet
Prisms for Total Stations Comparison Brochure

User Manual