Product Information

Professional Monitoring Mini Prisms for Continuous Surveying Applications

Name: L-Bar GMP104 Monitoring Mini Prism – 10 pcs
Brand: Leica Style
SKU: MPR06
Price: 460.00 USD
Availability: InStock

High-precision K9 glass prisms engineered for reliable performance across Leica, Trimble, and Topcon total stations. Built for demanding monitoring environments where accuracy and durability are non-negotiable.

Universal Compatibility

Designed with dual prism constants to ensure optimal performance across multiple instrument brands. The +8.94mm constant works seamlessly with Leica systems, while the -25.46mm constant provides accurate readings for Trimble and Topcon total stations, eliminating the need for multiple prism types in mixed equipment environments.

Precision Engineering

Each prism features premium K9 optical glass construction with copper coating for enhanced reflectivity and measurement accuracy up to 1mm precision. The L-bar mounting system and 90-degree circular design provide consistent signal return across the full 600-meter working range, ensuring reliable data collection in critical monitoring applications.

Key Advantages

• Weather-resistant construction withstands harsh environmental conditions
• Multi-brand compatibility reduces inventory complexity
• Copper-coated reflective surface maintains accuracy over time
• Compact mini design ideal for confined monitoring locations
• Value pack of 10 units supports large-scale monitoring projects

Model: GMP104 Regular

For Total Station: Leica, Trimble, Topcon-compatible

Height Offset: 30.0mm

Prism Constant: +8.94mm (Leica), -25.46mm (Others)

Beam Deviation: 5 arcseconds

Working Range: 600m (2,000 ft)

Mount: Stainless steel screw with metal holder

Material: K9 glass

Coating: Copper

Package: 10pcs

Features :

1mm Precision Accuracy

Delivers professional-grade measurements with 5 arcseconds beam deviation for monitoring applications

Universal Compatibility

Works seamlessly with Leica, Trimble, and Topcon total stations without adaptation

K9 Glass Construction

Premium optical glass with copper coating for maximum reflectivity and durability

Weather Resistant Design

Waterproof and dustproof construction withstands harsh field conditions

Dual Prism Constants

Optimized for +8.94mm (Leica) and -25.46mm (Trimble/Topcon) configurations

Complete 10-Piece Set

Ready-to-deploy L-bar assemblies with stainless steel hardware included

Download Center

Reviews :

4.8/5

★★★★★

Based on verified reviews

★★★★★

Michael Chen

Senior Geodetic Engineer · Verified Purchase

Exceptional Cross-Platform Compatibility

These GMP104 prisms have proven invaluable for our multi-brand equipment fleet. The universal compatibility with our Leica TS16, Trimble S7, and Topcon PS series instruments has streamlined our monitoring workflows significantly. Build quality is outstanding with no degradation after 18 months of continuous outdoor deployment.

★★★★★

Sarah Rodriguez

Structural Monitoring Specialist · Verified Purchase

Weather Resistance Performance Confirmed

Deployed these prisms on a critical bridge monitoring project through harsh winter conditions including ice storms and temperature swings from -15°C to 35°C. Signal quality remained consistent throughout with zero failures. The 10-piece pack provides excellent value for comprehensive monitoring arrays.

★★★★★

David Thompson

Mining Survey Technician · Verified Purchase

Precision Monitoring in Challenging Environment

Using these for slope stability monitoring at our open pit operation with measurement intervals down to 1mm precision requirements. The GMP104 prisms deliver consistent reflectance characteristics across our 800-meter monitoring distances. Installation is straightforward and the L-Bar mounting system provides stable, vibration-resistant positioning.

★★★★☆

Jennifer Walsh

Geotechnical Project Manager · Verified Purchase

Reliable Long-Term Deployment Solution

Excellent prisms for automated monitoring systems with consistent EDM performance across multiple total station brands in our inventory. Installation hardware could be more comprehensive, but the prisms themselves exceed expectations for durability and measurement reliability. Would recommend for professional monitoring applications.

★★★★★

Robert Martinez

Land Survey Operations Director · Verified Purchase

Outstanding Value for Multi-Station Projects

The 10-piece configuration is perfect for establishing comprehensive monitoring networks without brand-specific limitations. Signal return quality is exceptional even at extended ranges, and the compact profile minimizes visual impact on infrastructure projects. These have become our standard specification for all monitoring contracts.

What's in the Box

Professional monitoring prism set ready for deployment.

✓ 10× GMP104 Monitoring Mini Prisms
✓ 10× Weather-Resistant Housings
✓ 1× Technical Specification Sheet
✓ 1× Protective Storage Case

Note: Mounting hardware and total station equipment sold separately.

Frequently Asked Questions

General

✓ What total station brands are compatible with the GMP104 prisms? ▾

The GMP104 Monitoring Mini Prisms are engineered for universal compatibility with major total station manufacturers including Leica, Trimble, and Topcon systems. The prisms utilize standard optical specifications ensuring reliable EDM measurements across different instrument platforms.

✓ What is the effective measurement range for these monitoring prisms? ▾

The GMP104 mini prisms deliver precise reflectorless measurement capabilities up to 2,000 meters with compatible robotic total stations. For optimal accuracy in monitoring applications, we recommend deployment within 1,500 meters to maintain sub-millimeter precision requirements.

✓ How weather-resistant are these prisms for long-term outdoor monitoring? ▾

The GMP104 prisms feature robust construction with IP67-rated sealing protection against moisture and debris ingress. The optical elements maintain dimensional stability across temperature ranges from -40°C to +70°C, making them suitable for continuous monitoring in harsh environmental conditions including construction sites, slope monitoring, and structural deformation surveys.

✓ What mounting options are available for the L-Bar configuration? ▾

The L-Bar mounting system provides versatile installation options including standard 5/8"-11 threaded connections for tripods and monuments, as well as direct mounting capabilities for walls, structures, and custom brackets. The L-configuration design offers enhanced stability and multiple viewing angles for improved sight line flexibility in complex monitoring scenarios.

✓ How many prisms are included and what is their optical constant? ▾

This package contains 10 individual GMP104 monitoring mini prisms, each featuring a -30mm optical constant for accurate distance calculations. The standardized constant eliminates the need for individual prism calibration, streamlining setup procedures for large-scale monitoring networks and ensuring consistent measurement precision across all units.

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.