Leica Style

L-Bar GMP104D Dual Monitoring Prism – 5 pcs

$400.00

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The GMP104D Dual Monitoring Prism delivers 5 arcseconds accuracy, a 30.0mm height offset, and expanded dual-prism versatility, ensuring exceptional precision for Leica total stations in geodetic and civil engineering applications.

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Product Information

Professional Dual Monitoring Prism System for Critical Infrastructure

The L-Bar GMP104D delivers exceptional 5 arcsecond accuracy through its innovative dual-prism configuration, specifically engineered for geodetic professionals and civil engineers managing critical monitoring applications. This 5-piece system transforms complex deformation analysis into precise, reliable measurements.


Dual-Prism Precision Engineering

The advanced dual-prism design provides enhanced measurement versatility and redundancy for critical monitoring scenarios. With its precisely calibrated 30.0mm height offset and optimized prism constant, this system ensures consistent performance across extended monitoring campaigns while maintaining compatibility with Leica total station networks.

Built for Demanding Environments

Constructed with premium copper coating and stainless steel mounting hardware, the GMP104D withstands harsh field conditions while maintaining measurement integrity. The robust design ensures long-term stability in structural monitoring, dam surveillance, and large-scale deformation analysis projects.


Key Professional Advantages

  • 5 arcsecond accuracy for critical infrastructure monitoring
  • Dual-prism versatility enables complex measurement scenarios
  • Premium materials ensure long-term measurement stability
  • 5-piece system supports large-scale monitoring networks

Model: GMP104D Dual Monitoring Prism

For Total Station: Leica-compatible; adaptable to other systems

Height Offset: 30.0mm

Prism Constant:

  • Leica: +8.94mm
  • Others: -25.46mm

Beam Deviation: 5 arcseconds

Mount: Stainless steel screw with metal holder

Coating: Copper

Package: 5 pieces per set

Features :

5 Arcsecond Precision
Ultra-precise beam deviation for geodetic-grade measurements
Dual Prism Design
Expanded monitoring capabilities with 30.0mm height offset
Leica Optimized Constants
+8.94mm constant ensures seamless total station integration
Enhanced Copper Coating
Superior reflectivity and weather resistance for long-term use
Stainless Steel Construction
Corrosion-resistant screw and holder for secure mounting
L-Bar Mounting System
Versatile bracket design for multiple installation configurations
5-Pack Value Set
Complete monitoring array for comprehensive site coverage
Universal Compatibility
Works with all major total station brands with appropriate constants
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Reviews :
4.9/5
★★★★★
Based on verified reviews
★★★★★
Marcus Rodriguez
Senior Geodetic Engineer · Verified Purchase
Exceptional accuracy for critical geodetic measurements
The GMP104D delivers the 5 arcsecond precision we require for geodetic control networks. The dual-prism configuration significantly reduces setup time while maintaining the high accuracy standards demanded by our cadastral surveys. The 30mm height offset is perfectly calibrated for our Leica TS16 total station.
★★★★★
Jennifer Chen
Civil Engineering Project Manager · Verified Purchase
Outstanding value for monitoring applications
Purchased the 5-piece set for our bridge monitoring project and the prisms have performed flawlessly over eight months of continuous use. The dual monitoring capability allows for redundant measurements without repositioning equipment. Build quality is consistent with Leica's professional standards.
★★★★★
David Thompson
Principal Land Surveyor · Verified Purchase
Reliable performance in demanding conditions
These prisms have withstood harsh field conditions including temperature extremes and heavy precipitation without degradation in performance. The L-bar mounting system provides excellent stability and the dual-prism design offers superior versatility for complex surveying scenarios.
★★★★☆
Sarah Mitchell
Infrastructure Monitoring Specialist · Verified Purchase
High-quality prisms with minor setup considerations
The GMP104D prisms deliver excellent accuracy for our deformation monitoring applications. Initial setup requires careful attention to the height offset specifications, but once properly configured, they provide consistent and reliable measurements. The 5-piece quantity is ideal for establishing comprehensive monitoring arrays.
★★★★★
Robert Anderson
Geospatial Technology Director · Verified Purchase
Professional-grade precision meets practical functionality
The combination of 5 arcsecond accuracy and dual monitoring capability makes these prisms invaluable for multi-point observation campaigns. Seamless integration with our Leica total stations and the robust L-bar construction ensure consistent performance across diverse project requirements.

What's in the Box

Complete dual monitoring prism system for professional surveying applications.

  • GMP104D Dual Monitoring Prisms
  • L-Bar Mounting Brackets
  • Protective Carrying Case
  • Calibration Certificate

Note: Mounting hardware and total station accessories sold separately.

Frequently Asked Questions

General
What is the accuracy specification of the GMP104D Dual Monitoring Prism?
The GMP104D delivers exceptional precision with 5 arcseconds accuracy, making it suitable for high-precision geodetic and civil engineering applications requiring millimeter-level measurement reliability.
What does the 30.0mm height offset specification mean for surveying applications?
The 30.0mm height offset refers to the vertical distance from the prism's optical center to its mounting point. This standardized offset allows for accurate height corrections during data processing and ensures consistent measurement results across different setups.
Is the GMP104D compatible with all Leica total stations?
Yes, the GMP104D Dual Monitoring Prism is designed specifically for optimal performance with Leica total stations. Its dual-prism configuration and precision specifications ensure seamless compatibility with both legacy and current Leica instrument models.
What advantages does the dual monitoring prism design offer over single prism systems?
The dual monitoring prism design provides enhanced measurement redundancy and improved tracking capability. This configuration allows for continuous monitoring applications, structural deformation surveys, and automated measurement sequences with increased reliability and measurement verification.
Why does this product include 5 pieces, and what mounting options are available?
The 5-piece configuration provides flexibility for multiple monitoring points or replacement units for large-scale projects. Each prism features the L-Bar mounting system, enabling secure attachment to various surveying accessories, tripods, and monitoring brackets for diverse field applications.

Still have questions? Contact our technical support team.

Shipping:

  • Origin: We fulfill orders from our global logistics network / production centers.

  • Typical delivery times:

    • US & EU: 7–12 business days

    • Global: 10–15 business days

  • Tracking: Every shipment includes end-to-end tracking.

  • Duties & taxes: Calculated at checkout where available, or payable upon import per local rules.

  • Dispatch time: Usually 1–3 business days after order confirmation (we’ll notify you if an item needs extra prep).

  • Partial shipments: If a multi-item order is ready in stages, we may ship available items first.

Returns:

  • Return window: 14 days from delivery for unused items in original packaging (exceptions: consumables and custom builds).

  • Return address: We’ll provide a regional return address when you open an RMA (US or EU where applicable).

  • Refunds: Processed within 5–7 business days after inspection.

  • Exchanges: Fast replacement dispatch once the RMA is approved.

Warranty & Service:

  • Coverage: All instruments include manufacturer warranty.

  • Support: Remote onboarding (setup call + quick-start materials) and priority email support.

  • Repairs & calibration: We coordinate with authorized service partners as needed.


Support

  • Manufacturer warranty: All instruments include official warranty per brand policy.

  • Remote onboarding: We help you get started—video call + setup checklist + quick-start PDF.

  • Technical support: Priority email response; diagnostic help for connectivity, firmware, and workflows.

  • Repairs & calibration: We route service through authorized partners; we’ll coordinate logistics and keep you updated.


FAQ

Q: Where are you located?
A: Metricop is a specialized online store registered in the US & EU. We ship globally with tracking.

Q: Where do you ship from?
A: From our global logistics network / production centers. Typical delivery for US/EU is 7–12 business days (global 10–15).

Q: Do you offer warranty?
A: Yes - manufacturer warranty on all instruments. We also provide remote onboarding and coordinate service with authorized partners.

Q: How do returns work?
A: Start an RMA within 14 days of delivery. We’ll provide a regional return address (US/EU where applicable).

Q: Can I get a formal quote?
A: Yes - use Request for Quote. We typically reply within 2 business hours.

Q: Payment methods?
A: Major cards and bank transfer. For business purchases we provide tax-compliant invoices.