Optical Plummet Adapter (w. Lever Arm)

Specifications & Features
Model: GPA-A-BLK-OP-58
Geomaster black Optical Plummet Adapter (GPA) with a male adapter 5/8", a precision adapter for
GPS, Prism Holders and Targets, and other surveying equipment (RTK Base Stations, fixed LiDAR
SLAM), designed for traversing and precise setting-up, featuring a twist-focusing optical plummet and
rotating axis for standard three-prong tribrachs.

1. Type
A

2. Body Color
Black (BLK)

3. Optical Plummet (OP)

1)Twist-focusing optical plummet
2)Magnification: 2.5×
3)Focusing Range: 0.5–15 m
4)Over-point Accuracy: ≤ 1 mm at 1.5 m
5)Adapter: 5/8"×11 male Thread

4. Lever Arm
Designed for accurate height measurements to the Bottom Notch for Trimble & Spectra Surveying
Instruments such as Scanning Total Stations (SX series), Robotic Total Stations (S series)

5. Adapter
Male Thread 5/8"×11, works with all Geomaster Surveying Equipment (Prism Holders and Targets
GHT112 series, Premier Prism Assembly, Traverse Prism Kit, RTK Base Stations, fixed SLAM and
LiDAR, etc) except Leica-style surveying equipment.

6. Plate Bubble
Adjustable plate bubble: 60″ / 2 mm

7. Adjustable Height
0 mm (fixed height)

8. Net Weight
540-550 g

9. Compatibility
1)Fits for Trimble-style BasicTribrach 78607007
2)Perfect match with Geomaster Basic Tribrachs (GBT series, without optical plummet).
3)Fully compatible with other brands' Basic Tribrachs (without optical plummet) via standard
three-prong forced-centering interface.
Note: Any updates would be subject to change without prior notice.
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