PRODUCT DETAILS
The GDF21 Swiss-Style Tribrach Without Optical Plummet is a standard precision tribrach designed for total station, GPS, and GNSS surveying setups. It features a durable aluminum body and a standard 5/8"-11 female thread for mounting compatible surveying equipment and accessories.
With its simple Swiss-style design, the GDF21 Swiss-Style Tribrach Without Optical Plummet is easy to install, carry, and use in daily field work. The tribrach is a practical choice for surveyors who need a reliable mounting base without an integrated optical plummet.
The GDF21 Swiss-Style Tribrach Without Optical Plummet can be used with compatible total station accessories, surveying poles, GPS/GNSS equipment, and other 5/8"-11 threaded components. Its standard configuration makes it suitable for routine surveying and construction measurement tasks.

Specifications
| Specification | Details |
|---|---|
| Model | GDF21 |
| Type | Swiss-Style Tribrach |
| Precision | Standard Precision |
| Optical Plummet | Without Optical Plummet |
| Material | Aluminum |
| Thread | 5/8"-11 Female Thread |
| Color Options | Green / Black |
| Application | Total Station, GPS, GNSS Surveying |
| Mounting Interface | 5/8"-11 Female |
Package Includes
- 1 × GDF21 Swiss-Style Tribrach
Product Highlights
- Swiss-Style Design: Standard precision tribrach for professional surveying equipment and field setups.
- Durable Aluminum Body: Lightweight aluminum construction provides a practical balance of strength and easy handling.
- 5/8"-11 Female Thread: Designed for surveying instruments, tribrach accessories, poles, and compatible mounting systems.
- Without Optical Plummet: Simple design for applications where an optical plummet is not required.
- Two Color Options: Available in Green or Black to suit different equipment setups.
Applications
Total Station Surveying
Use the tribrach as a stable mounting base for compatible total station equipment and accessories with a 5/8"-11 connection.
GPS and GNSS Surveying
The standard female thread makes the tribrach suitable for compatible GPS/GNSS surveying setups that use a 5/8"-11 mounting interface.
Construction Layout
Useful for construction layout, site measurement, alignment, and other field surveying tasks where a reliable equipment mounting base is required.
Topographic Surveying
Suitable for routine topographic data collection and field measurement setups using compatible surveying accessories.
Survey Equipment Setup
The GDF21 provides a simple mounting solution for surveyors who need a standard Swiss-style tribrach without an optical plummet.
Summary
The GDF21 Swiss-Style Tribrach Without Optical Plummet combines a durable aluminum construction with a standard 5/8"-11 female thread and Swiss-style design. It is a practical mounting accessory for compatible total station, GPS, GNSS, and surveying equipment. For field teams looking for a simple standard-precision tribrach without an optical plummet, the GDF21 offers a straightforward solution for daily surveying and construction work.

GDF22 Tribrach With Optical...
