Surveying Sextant

From €1,189.00 *

Prices incl. VAT plus shipping costs

From €999.16 Plus VAT

More information

  • 461000

The Cassens & Plath surveying sextant with the 4x40 scope is used for geodetic horizontal angle measurements. It is a regular drum sextant without shadow glasses and illumination. It is equipped with the traditional split-view mirror.

The normal measuring range of -5° to 125° can be widened by 90° when attaching a pentagonal prism. The measuring range thus encompasses 215°.

An additional vertical handle and a tripod adapter are included in delivery. The pentaprism in its brass frame with adjustment screws is locked on the sextant with a bayonet lock. It snaps into two measuring positions.

The measuring sextant is stowed in a wooden case. It contains separate holders for the pentaprism and the vertical handle.


More information:

Sextant frame

Horizon mirrors

Construction of a sextant

Service & Repair


Colour: Black
Scope: 4x40
Horizon mirror: Split-view
Astigmatizing lens: x
POL filtre: x
Double prism: x
Neck strap: x
Non-slip legs: x
Index error adjustment: x
Dip adjustment: x
Memory foil: x
Engraving: x
Lighting: x
Pentagonal Prism:
BSH type approval: x
Frame material: Brass
Measurement accuracy: +/-10“
Case: Wooden case
Weight: 1,80 kg
Weight incl. case: 5,50 kg
Case dimension (mm): Wooden case 320 x 365 x 185
Available downloads:
  • Sextant
  • Wooden case
  • Mirror adjustment key
  • Towl for cleaning optical parts
  • Brush
  • Operating instructions
  • Quality certificate