PRODUCT DETAILS
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This 3PCS GMP104 Mini Prism With 9-inch Extended L-Bar delivers reliable, high-accuracy measurements for tunnel, subway, and bridge deformation monitoring, featuring a 25.4 mm copper-coated prism that ensures superior reflectivity and signal return.
Durable All-Weather Construction – Crafted from high-quality CNC-machined anodized aluminum, the 3PCS GMP104 Mini Prism With 9-inch Extended L-Bar offers exceptional corrosion resistance and long-term durability, performing flawlessly in extreme environmental conditions from dust and moisture to temperature fluctuations.
Versatile L-Shape Holder with Secure Mounting – Equipped with a rugged L-shape holder and M10×20 screw, the 3PCS GMP104 Mini Prism With 9-inch Extended L-Bar enables quick, stable installation on tunnel walls, building facades, foundation slabs, retaining walls, and bridge decks.

Exceptional Working Range & Accuracy – 9-inch Extended L-Bar Prism With an impressive measurement range of up to 2,000 meters and anti-reflective coating that eliminates measurement errors, the 3PCS GMP104 Mini Prism With 9-inch Extended L-Bar ensures consistent, error-free data collection even in challenging long-distance surveying scenarios.
Universal Compatibility – The 3PCS GMP104 Mini Prism With 9-inch Extended L-Bar works seamlessly with major total station brands including Swiss-style etc.
3PCS GMP104 Mini Prism With 9-inch Extended L-Bar Application
Tunnel & Subway Monitoring
Bridge & Dam Deformation Surveying
Mining & Slope Stability Monitoring
Construction Layout & Surveying
Railway Monitoring
