TT-41 is suitable for long monitoring such as dams.
TT-41 is a nodal prism. Surveying prisms and holders that are not nodal prisms can cause angular errors, if it is not perfectly pointed toward the measuring instrument.
SPECIFICATIONS
Prism size
2.5 inch (63.5mm)
Prism constant
-41mm
Prism height
60mm
Beam deviation
5” - 6”
STANDARD ACCESSORIES
⋅Base mount
⋅Anchor bolt (φ14 × L70mm, 59g)
* Prism canister is not included.
OPTIONS
Rain Cover for MG-2504R/S
RC-25
Full availability of the prism even in rainy conditions. RC-25 protects the prism front against rain drops and dust.
SPECIFICATIONS