{"id":9680759324823,"title":"Double Prism Optical Square for 90 Degree Right Angle Layout, Straight Line | Portable Penta Prism for Surveying \u0026 Construction Perpendicular Line","handle":"double-prism-optical-square-for-90-degree-right-angle-layout-straight-line-portable-penta-prism-for-surveying-construction-perpendicular-line","description":"\u003ch3\u003eDouble Prism Optical Square for 90 Degree Right Angle Layout, Straight Line | Portable Penta Prism for Surveying \u0026amp; Construction Perpendicular Line\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eMini Optical Right Angle Prism 90 Degree Square Prism, Double Penta Reflective\nSurveying Prism for Total Station, GPS Receiver \u0026amp; Theodolite Level DJ-2 Double\nPrism Optical Square is used for determining 90° sightings. Comprises of two\npenta prisms of quality optical glass in sturdy aluminium housing. The\naccuracy of a right angle set with the optical square is approximately ±1cm at\n30m. Used for: placing points on line, setting out curves, offset\nmeasurements, determining the horizontal and detail plans. 1. Dual Prism\nDesign for Multidirectional Observation Featuring two precision prisms, this\nDouble Prism Optical Square supports simultaneous left\/right right-angle and\nstraight-ahead viewing. It shows both baseline and perpendicular line at once,\nno assistant needed—more efficient than single-prism tools. 2. Effortless\nRight Angle Layout Easy two-step right angle layout: Hold vertically over the\nbaseline peg (with plumb bob), align two poles' images, then guide a third\npole to align—get a precise 90° line for field surveying and marking. 3. Easy\nPerpendicular Line Setting Quick perpendicular line setup: Align with two\nbaseline poles, shift to align the target pole, fix position with a plumb\nbob—no complex calculations, ideal for layout tasks. 4. Durable \u0026amp; Portable for\nField Use Durable optical glass prisms and sturdy housing suit outdoor use.\nLightweight with ergonomic grip, compatible with plumb bobs for stable,\naccurate positioning. 5. Versatile for Professional Applications Essential for\nsurveyors, engineers and landscapers. Fits right angle marking, curve staking\nand calibration—reliable for precise 90° measurements in all construction\nprojects.\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eDJ-2 Double Right Angle Penta Prism is used for determining 90 sightings. Comprises of two penta prisms of quality optical glass in sturdy aluminium housing. The accuracy of a right angle set with the optical square is approximately 1cm at 30m. Used for: placing points on line, setting out curves, offset measurements, determining the horizontal and detail plans.\u003c\/li\u003e\n \u003cli\u003eFeaturing two precision prisms, this Double Prism Optical Square supports simultaneous left\/right right-angle and straight-ahead viewing. It shows both baseline and perpendicular line at once, no assistant neededmore efficient than single-prism tools.\u003c\/li\u003e\n \u003cli\u003eEffortless Right Angle Layout, Easy Perpendicular Line Setting\u003c\/li\u003e\n \u003cli\u003eDurable optical glass prisms and sturdy housing suit outdoor use. Lightweight with ergonomic grip, compatible with plumb bobs for stable, accurate positioning\u003c\/li\u003e\n \u003cli\u003eEssential for surveyors, engineers and landscapers. Fits right angle marking, curve staking and calibrationreliable for precise 90 measurements in all construction projects Used for determining 90 sightings.\u003c\/li\u003e\n \u003c\/ul\u003e","published_at":"2026-07-30T19:47:29+10:00","created_at":"2026-07-26T19:01:30+10:00","vendor":"ACCRSNCH","type":"Angle","tags":["home_improvement_Aug2026"],"price":20500,"price_min":20500,"price_max":20500,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":48067948937367,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"B0GHR8NWCR","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Double Prism Optical Square for 90 Degree Right Angle Layout, Straight Line | Portable Penta Prism for Surveying \u0026 Construction Perpendicular Line","public_title":null,"options":["Default Title"],"price":20500,"weight":132,"compare_at_price":null,"inventory_management":"shopify","barcode":"DJ-2 Optical Prism","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/newnestshop.com\/cdn\/shop\/files\/B0GHR8NWCR.jpg?v=1785056492","\/\/newnestshop.com\/cdn\/shop\/files\/61UQ8igZUoL.jpg?v=1785056493","\/\/newnestshop.com\/cdn\/shop\/files\/51TvjgGKwnL.jpg?v=1785056492","\/\/newnestshop.com\/cdn\/shop\/files\/518SL76BAOL.jpg?v=1785056492"],"featured_image":"\/\/newnestshop.com\/cdn\/shop\/files\/B0GHR8NWCR.jpg?v=1785056492","options":["Title"],"media":[{"alt":null,"id":42455316660375,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1500,"width":1500,"src":"\/\/newnestshop.com\/cdn\/shop\/files\/B0GHR8NWCR.jpg?v=1785056492"},"aspect_ratio":1.0,"height":1500,"media_type":"image","src":"\/\/newnestshop.com\/cdn\/shop\/files\/B0GHR8NWCR.jpg?v=1785056492","width":1500},{"alt":null,"id":42455316693143,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1500,"width":1500,"src":"\/\/newnestshop.com\/cdn\/shop\/files\/61UQ8igZUoL.jpg?v=1785056493"},"aspect_ratio":1.0,"height":1500,"media_type":"image","src":"\/\/newnestshop.com\/cdn\/shop\/files\/61UQ8igZUoL.jpg?v=1785056493","width":1500},{"alt":null,"id":42455316725911,"position":3,"preview_image":{"aspect_ratio":1.0,"height":1600,"width":1600,"src":"\/\/newnestshop.com\/cdn\/shop\/files\/51TvjgGKwnL.jpg?v=1785056492"},"aspect_ratio":1.0,"height":1600,"media_type":"image","src":"\/\/newnestshop.com\/cdn\/shop\/files\/51TvjgGKwnL.jpg?v=1785056492","width":1600},{"alt":null,"id":42455316758679,"position":4,"preview_image":{"aspect_ratio":1.0,"height":1600,"width":1600,"src":"\/\/newnestshop.com\/cdn\/shop\/files\/518SL76BAOL.jpg?v=1785056492"},"aspect_ratio":1.0,"height":1600,"media_type":"image","src":"\/\/newnestshop.com\/cdn\/shop\/files\/518SL76BAOL.jpg?v=1785056492","width":1600}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eDouble Prism Optical Square for 90 Degree Right Angle Layout, Straight Line | Portable Penta Prism for Surveying \u0026amp; Construction Perpendicular Line\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eMini Optical Right Angle Prism 90 Degree Square Prism, Double Penta Reflective\nSurveying Prism for Total Station, GPS Receiver \u0026amp; Theodolite Level DJ-2 Double\nPrism Optical Square is used for determining 90° sightings. Comprises of two\npenta prisms of quality optical glass in sturdy aluminium housing. The\naccuracy of a right angle set with the optical square is approximately ±1cm at\n30m. Used for: placing points on line, setting out curves, offset\nmeasurements, determining the horizontal and detail plans. 1. Dual Prism\nDesign for Multidirectional Observation Featuring two precision prisms, this\nDouble Prism Optical Square supports simultaneous left\/right right-angle and\nstraight-ahead viewing. It shows both baseline and perpendicular line at once,\nno assistant needed—more efficient than single-prism tools. 2. Effortless\nRight Angle Layout Easy two-step right angle layout: Hold vertically over the\nbaseline peg (with plumb bob), align two poles' images, then guide a third\npole to align—get a precise 90° line for field surveying and marking. 3. Easy\nPerpendicular Line Setting Quick perpendicular line setup: Align with two\nbaseline poles, shift to align the target pole, fix position with a plumb\nbob—no complex calculations, ideal for layout tasks. 4. Durable \u0026amp; Portable for\nField Use Durable optical glass prisms and sturdy housing suit outdoor use.\nLightweight with ergonomic grip, compatible with plumb bobs for stable,\naccurate positioning. 5. Versatile for Professional Applications Essential for\nsurveyors, engineers and landscapers. Fits right angle marking, curve staking\nand calibration—reliable for precise 90° measurements in all construction\nprojects.\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eDJ-2 Double Right Angle Penta Prism is used for determining 90 sightings. Comprises of two penta prisms of quality optical glass in sturdy aluminium housing. The accuracy of a right angle set with the optical square is approximately 1cm at 30m. Used for: placing points on line, setting out curves, offset measurements, determining the horizontal and detail plans.\u003c\/li\u003e\n \u003cli\u003eFeaturing two precision prisms, this Double Prism Optical Square supports simultaneous left\/right right-angle and straight-ahead viewing. It shows both baseline and perpendicular line at once, no assistant neededmore efficient than single-prism tools.\u003c\/li\u003e\n \u003cli\u003eEffortless Right Angle Layout, Easy Perpendicular Line Setting\u003c\/li\u003e\n \u003cli\u003eDurable optical glass prisms and sturdy housing suit outdoor use. Lightweight with ergonomic grip, compatible with plumb bobs for stable, accurate positioning\u003c\/li\u003e\n \u003cli\u003eEssential for surveyors, engineers and landscapers. Fits right angle marking, curve staking and calibrationreliable for precise 90 measurements in all construction projects Used for determining 90 sightings.\u003c\/li\u003e\n \u003c\/ul\u003e"}