Leica Style

GDF122M Tribrach with Optical Plummet

$246.34
5.0

Contact us for the best deal on this product.


The GDF122M Tribrach with an optical plummet is a reliable and precise tool for surveyors. It features an optical plummet that enables vertical alignment and an 8' circular vial for leveling. The tool is compatible with Leica TPS and other instruments, it offers a secure and stable connection with a standard 5/8x11 thread.

Secure Payments
American Express
Apple Pay
Diners Club
Discover
Google Pay
Mastercard
Shop Pay
Visa
  • Quick worldwide shipping with trusted carriers
  • Multiple safe payment options for peace of mind
  • Professional advice to choose the right equipment
  • 24/7 premium customer assistance

Product Information

GDF122M Tribrach with Optical Plummet

Professional-grade tribrach designed for precise instrument mounting and vertical alignment. Built for surveyors who demand reliable positioning and seamless compatibility with modern total stations and theodolites.


Precision Optical Plummet System

The integrated optical plummet provides crystal-clear vertical alignment, allowing surveyors to position instruments with millimeter accuracy over survey points. This direct optical path eliminates guesswork and reduces setup time while maintaining the precision standards required for professional surveying applications.

Universal Compatibility & Stability

Engineered with standard 5/8" x 11 TPI threading for seamless integration with Leica total stations, theodolites, and compatible instruments from other manufacturers. The robust construction ensures stable instrument mounting even in challenging field conditions, while the precision 8-arc circular vial enables accurate leveling across uneven terrain.


Key Professional Advantages

  • Optical plummet eliminates laser dependency and battery concerns
  • 8-arc circular vial provides rapid, accurate leveling
  • Standard threading ensures compatibility across instrument brands
  • Durable construction withstands daily field use and transport
  • Compact design reduces total equipment weight and bulk

Model: GDF122M

Compatible: Leica TPS & other surveying instruments

Circular Vial: 8' accuracy

Thread: 5/8x11 standard mounting thread

Color: Leica Green

Weight: 1.80 lbs.

Features :

Built-in Optical Plummet

Delivers precise vertical alignment for accurate instrument positioning

8' Circular Vial Leveling

Professional-grade leveling system ensures instrument stability

Universal 5/8x11 Thread

Standard mounting thread compatible with most surveying instruments

Precision Machined Construction

High-quality materials ensure long-term accuracy and reliability

Lightweight Aluminum Body

Reduces setup fatigue while maintaining structural integrity

Quick Setup Design

Streamlined mounting system reduces field setup time

Weather Resistant Finish

Durable coating protects against harsh field conditions

Leica TPS Compatibility

Engineered specifically for seamless integration with Leica systems

Download Center
Reviews :
4.9/5
★★★★★
Based on verified reviews
★★★★★
Marcus Rodriguez
Survey Project Manager · Verified Purchase
Exceptional precision and build quality
The GDF122M delivers outstanding accuracy with its optical plummet system, making setup procedures significantly more efficient. The 8-arc-minute circular vial provides excellent leveling precision, and the standard 5/8x11 threading ensures seamless compatibility across our entire instrument fleet.
★★★★★
Sarah Chen
Land Surveying Technician · Verified Purchase
Reliable performance in demanding field conditions
This tribrach has proven its durability through months of intensive fieldwork in various environmental conditions. The optical plummet maintains crystal-clear visibility even in challenging lighting, and the robust construction shows no signs of wear despite heavy daily use.
★★★★★
David Thompson
Civil Engineering Supervisor · Verified Purchase
Perfect compatibility with our Leica TPS systems
The seamless integration with our Leica total stations makes this tribrach an essential component for our surveying operations. Setup time has decreased noticeably, and the consistent accuracy meets our stringent project specifications without compromise.
★★★★★
Jennifer Walsh
Geodetic Survey Specialist · Verified Purchase
Outstanding value for professional applications
The GDF122M delivers professional-grade performance at an excellent price point for budget-conscious operations. The optical plummet clarity and mechanical stability rival more expensive alternatives, making it an intelligent choice for expanding survey teams.
★★★★☆
Michael Patterson
Construction Survey Coordinator · Verified Purchase
Solid performance with minor assembly considerations
Excellent overall functionality and precision that meets our daily surveying requirements effectively. The only minor consideration is ensuring proper torque specifications during initial setup, but once configured correctly, it performs flawlessly throughout extended field sessions.

What's in the Box

Everything you need to get started.

  • GDF122M Tribrach with Optical Plummet
  • Centering Plumb Bob Hook
  • User Manual and Calibration Certificate

Note: Tripod and surveying instruments sold separately.

Frequently Asked Questions

General
Is the GDF122M compatible with non-Leica total stations?
Yes, the GDF122M features a standard 5/8x11 thread connection that ensures compatibility with most surveying instruments beyond Leica TPS systems, including total stations from major manufacturers like Topcon, Trimble, and Sokkia.
What is the accuracy specification of the 8' circular vial?
The 8' circular vial provides precise leveling with an accuracy of 8 arc minutes per 2mm division, ensuring reliable horizontal positioning for your surveying setup. This sensitivity level is ideal for professional surveying applications requiring accurate instrument leveling.
How does the optical plummet system work for vertical alignment?
The optical plummet uses a precision optical system with crosshairs to provide direct vertical sighting to survey points below. Simply look through the eyepiece, focus on the ground point, and adjust the tribrach position until the crosshairs align perfectly with your survey mark for accurate centering.
What type of tripod connection does this tribrach require?
The GDF122M is designed for standard surveying tripods with 5/8x11 thread connections. This universal threading ensures compatibility with professional survey tripods from all major manufacturers, providing a secure and stable mounting platform for your surveying operations.
Can this tribrach be used for both centering and leveling simultaneously?
Absolutely. The GDF122M is specifically designed for simultaneous centering and leveling operations. Use the optical plummet for precise point centering while monitoring the 8' circular vial for level adjustment. The three adjustable leveling screws allow fine-tuning of both functions independently for optimal setup efficiency.

Still have questions? Contact our technical support team.

This Shipping & Delivery Policy applies to orders placed through metricop.com and to quotations, proforma invoices and sales confirmations issued by Surveying Equipment Metricop LLC (“Metricop”, “we”, “us” or “our”), unless another selling entity or different shipping terms are expressly identified in the applicable quotation or invoice.

If a quotation, proforma invoice or written sales confirmation contains shipping terms that differ from this Policy, the terms in that document will control. Nothing in this Policy limits any mandatory rights available to a Consumer under applicable law.

1. Order acknowledgement and acceptance

An automated order confirmation only confirms that we have received the order. It does not constitute final acceptance of the order or confirmation of product availability.

An order is accepted when Metricop sends a written order acceptance or dispatch confirmation, or otherwise expressly confirms acceptance in writing.

Before acceptance, we may verify:

  • product availability;

  • price and specification accuracy;

  • payment status;

  • shipping address;

  • export or import restrictions;

  • compatibility or configuration information; and

  • suspected fraud or payment risk.

If we cannot accept an order, any payment already received will be returned using the original payment method.

2. Availability and shipping origin

Products may be dispatched from Metricop stock, a logistics partner, an authorised supplier or a manufacturer warehouse. The shipping country may therefore differ from Metricop’s registered business address.

Orders containing several products may be shipped in separate packages and may arrive on different dates.

Stock information is based on the information reasonably available when the order is placed and may change before final order acceptance. Products described as available, in stock or supplier stock are subject to final verification.

3. Processing and delivery estimates

Any processing, dispatch, transit or delivery time displayed on the website, quotation, invoice, order confirmation or tracking page is a good-faith estimate only, unless Metricop expressly confirms a guaranteed date in writing.

Where the website states “Estimated delivery: 4–7 business days,” this means the typical estimated delivery period for eligible in-stock orders after payment and order verification. It is not a guaranteed arrival date.

Delivery estimates may be affected by:

  • stock or supplier availability;

  • technical configuration or testing;

  • calibration or certification;

  • payment verification;

  • customer response time;

  • export documentation;

  • destination and remote-area service;

  • carrier capacity;

  • customs clearance;

  • import inspections;

  • public holidays, weather or other events outside our reasonable control.

Business days exclude weekends and public holidays applicable at the dispatch location, carrier hubs or destination.

If delivery by a particular date is essential, the Buyer must contact Metricop before placing or paying for the order. A requested date, project deadline or “required delivery” field does not become binding unless Metricop expressly accepts it in writing as a guaranteed delivery date.

If a material delay occurs, we will provide an updated estimate and any cancellation or refund options required by applicable law.

4. Shipping methods and charges

Shipping methods and charges depend on the product, destination, value, dimensions and required service.

Where “free shipping” or “shipping included” is stated, it covers only the standard transportation service expressly included in the order. Unless stated otherwise, it does not include:

  • customs duties, import VAT or local taxes;

  • brokerage or clearance fees;

  • remote-area or address-correction surcharges;

  • storage, demurrage or redelivery charges;

  • special permits or inspections;

  • return transportation; or

  • cargo insurance exceeding the carrier’s standard liability.

If an additional shipping charge becomes necessary before dispatch, we will request the Buyer’s approval. The order will not be dispatched with an unapproved material additional charge.

5. Customs, duties and importer responsibilities

Unless an order is expressly confirmed as DDP – Delivered Duty Paid, the recipient is responsible for customs clearance, import duties, VAT, taxes, brokerage charges and other destination-country costs.

The recipient may be treated as the importer of record and is responsible for providing accurate identification, tax numbers, permits and other information requested by customs authorities or the carrier.

Customs clearance time is outside Metricop’s direct control and is not included in any estimated delivery period unless expressly stated.

Metricop will not declare an incorrect value, description or country of origin or identify commercial goods as gifts.

6. Shipping addresses and delivery attempts

The Buyer is responsible for providing a complete and accurate delivery address, contact person, telephone number and any required customs information.

A request to change the address after order acceptance may result in delay, additional charges or cancellation if the shipment can no longer be redirected safely.

Delivery may require a signature. Delivery to the address, reception desk, mailroom, site office or person reasonably appearing authorised to receive the shipment will normally constitute delivery.

7. Risk of loss

For Consumers, risk of loss remains with Metricop until the Consumer or a person designated by the Consumer takes physical possession of the goods, where required by applicable law.

For Business Customers, the Incoterm stated in the quotation or invoice controls. If no different Incoterm is stated and Metricop arranges and prepays transportation, the order is shipped CPT Buyer’s delivery address, Incoterms® 2020. Risk passes to the Business Customer when the goods are handed to the first carrier, even though Metricop pays transportation to the stated destination.

Unless expressly included, cargo insurance beyond the carrier’s standard liability is not provided. Business Customers may request additional cargo insurance before order acceptance.

8. Inspection and transit damage

The recipient should inspect the shipment immediately upon delivery.

Visible external damage, missing packages or suspected tampering should be noted on the carrier’s delivery record. Photographs of the package, labels, contents and serial numbers should be taken before packaging is discarded.

Business Customers must notify Metricop of visible shipping damage, shortages or an incorrect product within five business days after delivery. Notification should include:

  • order or invoice number;

  • tracking number;

  • description of the issue;

  • photographs or video;

  • product and package labels; and

  • applicable serial numbers.

Failure to notify us promptly may prevent recovery from the carrier and may affect a Business Customer’s claim to the extent permitted by law. This does not limit non-waivable Consumer rights.

The recipient must retain all original packaging until Metricop confirms that it may be discarded.

9. Delayed, lost or misrouted shipments

Tracking information and carrier estimates are not guarantees.

If a shipment appears lost or materially delayed, please contact Metricop so that we can open a carrier investigation. Carrier investigations may require information or documents from the recipient.

For Business Orders where risk has already passed to the Buyer, Metricop’s assistance with a carrier claim does not mean that Metricop has reassumed the risk of loss.

10. Refused and undeliverable shipments

A Business Customer’s refusal to accept a conforming shipment, failure to provide customs information or failure to pay import charges does not constitute an authorised cancellation.

Actual return freight, storage, customs, brokerage, redelivery and other non-recoverable costs may be deducted from any amount otherwise refundable to a Business Customer.

Consumer rights regarding refused or undelivered shipments remain subject to applicable mandatory law.

11. Events outside our reasonable control

Metricop is not responsible for delays caused by events outside its reasonable control, including carrier disruption, customs action, export restriction, government order, labour dispute, natural disaster, severe weather, war, civil disturbance, epidemic, cyber incident, supplier interruption or infrastructure failure.

For Business Customers, Metricop is not liable for project delay, downtime, lost profit, substitute-equipment costs or other indirect or consequential loss resulting from a delivery delay, except where liability cannot lawfully be excluded.

12. Contact

Questions regarding shipping should be sent to:

Surveying Equipment Metricop LLC
30 North Gould Street
Sheridan, WY 82801, USA
Email: sales@metricop.com