{"product_id":"90-degree-copper-coated-mini-l-bar-monitoring-prism-total-station-reflector","title":"90° Copper-Coated Mini L-Bar Monitoring Prism for Total Station","description":"\n\u003ch2\u003e90° Copper-Coated Mini L-Bar Monitoring Prism – Total Station Replacement Reflector\u003c\/h2\u003e\n\u003cp\u003eUpgrade your surveying setup with this precision-engineered \u003cstrong\u003e90-Degree L-Bar Mini Monitoring Prism\u003c\/strong\u003e. Copper-coated for superior reflectivity and durability, this compact prism is a direct replacement for the GMP104 and is compatible with a wide range of total station instruments. Whether you're working on infrastructure monitoring, construction alignment, or structural displacement surveys, this prism delivers reliable, accurate results every time.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e90° L-Type Design:\u003c\/strong\u003e Engineered for precise angle measurement and stable mounting in demanding field conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCopper-Coated Reflective Surface:\u003c\/strong\u003e Enhances signal return strength and longevity compared to standard coated prisms.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGMP104 Compatible Replacement:\u003c\/strong\u003e Drop-in substitute for total station reflector assemblies — no modifications required.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Application Range:\u003c\/strong\u003e Ideal for monitoring tunnels, roads, bridges, dams, buildings, and other fixed structures for distortion and displacement surveys.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility:\u003c\/strong\u003e Suits a variety of total station brands and models, making it a versatile addition to any surveying kit.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Lightweight:\u003c\/strong\u003e The mini form factor allows mounting in tight or confined spaces where standard prisms cannot fit.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 piece included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e 90-Degree L-Bar Mini Monitoring Prism\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e Copper-coated reflective surface\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReplaces:\u003c\/strong\u003e GMP104 Total Station Prism\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Structural monitoring, displacement \u0026amp; distortion surveying\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery Required:\u003c\/strong\u003e No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 pc\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eMade in Mainland China\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003eThis L-Bar monitoring prism is designed for professionals who need a reliable reflector solution for fixed-point surveying. Mount it on tunnels, bridges, dams, road embankments, retaining walls, or any structural surface requiring ongoing displacement and distortion monitoring. Its compatibility with multiple total station brands makes it a go-to reflector for civil engineers, land surveyors, and construction monitoring teams.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/3pcs-silicone-sealant-scraper-set-multi-functional-caulking-nozzle-tools-for-tile-floor-joints-grout-finishing-and-renovation\"\u003e3PCS Silicone Sealant Scraper Set – Multi-Functional Caulking \u0026amp; Grout Finishing Tools\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-multi-use-faucet-bubbler-wrenches-6-sizes-sink-wrenches-detach-tool-for-kitchen-bathroom-faucet-parts-repair-spanner\"\u003e1PC Multi-Use Faucet Bubbler Wrench – 6-Size Sink Repair Spanner Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-10g-high-grade-silicon-grease-lubricant-o-lubrication-good-odorless-smoothness-for-o-rings-tube-silicone-grease-lubricant\"\u003e1PC High-Grade Silicone Grease Lubricant for O-Rings \u0026amp; Precision Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Please allow 2–3% dimensional tolerance due to manual measurement. Actual product color may vary slightly from images due to differences in display calibration.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Is this 90-degree L-bar mini prism compatible with my total station?\u003c\/h4\u003e\n\u003cp\u003eA: This copper-coated 90° L-bar monitoring prism is designed to be compatible with a wide variety of total station brands and models. It is a direct replacement for the GMP104 prism. We recommend verifying your instrument's prism mounting specifications before ordering to ensure a proper fit.\u003c\/p\u003e\n\u003ch4\u003eQ: What structures or surfaces can this monitoring prism be mounted on?\u003c\/h4\u003e\n\u003cp\u003eA: The L-bar mini monitoring prism is suitable for mounting on tunnels, roads, bridges, dams, buildings, and other fixed construction elements. It is widely used in structural displacement and distortion monitoring surveys by civil engineers and surveyors.\u003c\/p\u003e\n\u003ch4\u003eQ: Does this prism require any tools or batteries for installation?\u003c\/h4\u003e\n\u003cp\u003eA: No batteries are required — this is a purely optical reflector component. Installation typically involves standard mounting hardware appropriate to your chosen surface. The compact L-bar form factor is designed for easy placement in tight or restricted locations.\u003c\/p\u003e\n\u003ch4\u003eQ: How many prisms are included in one order?\u003c\/h4\u003e\n\u003cp\u003eA: Each order includes 1 piece of the 90° copper-coated L-bar mini monitoring prism.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is this 90-degree L-bar mini prism compatible with my total station?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This copper-coated 90° L-bar monitoring prism is designed to be compatible with a wide variety of total station brands and models. It is a direct replacement for the GMP104 prism. 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The compact L-bar form factor is designed for easy placement in tight or restricted locations.\"}}, {\"@type\": \"Question\", \"name\": \"How many prisms are included in one order?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Each order includes 1 piece of the 90° copper-coated L-bar mini monitoring prism.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/x1davz-b4.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/x1davz-b4.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"90° Copper-Coated Mini L-Bar Monitoring Prism for Total Station\", \"item\": \"https:\/\/x1davz-b4.myshopify.com\/products\/90-degree-copper-coated-mini-l-bar-monitoring-prism-total-station-reflector\"}]}\u003c\/script\u003e","brand":"Nixie","offers":[{"title":"Default Title","offer_id":67610040696931,"sku":"1005012469182456-Default Title","price":36.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/2047\/6003\/files\/S5a79e10c1aa2493d9a5e5a5a7517f1b6H.webp?v=1790792655","url":"https:\/\/nixiehaven.com\/products\/90-degree-copper-coated-mini-l-bar-monitoring-prism-total-station-reflector","provider":"Nixie","version":"1.0","type":"link"}