{"product_id":"the-cartesian-grid-16-12-line-4d-green-self-leveling-laser","title":"The Cartesian Grid | 16\/12-Line 4D Green Self-Leveling Laser","description":"\u003cdiv class=\"product-narrative\"\u003e\n\u003cp\u003eEvery room begins as a volume of empty space and becomes a grid — first in the mind of the builder, then on the surface of the walls. The Cartesian Grid makes that grid visible. Sixteen laser lines — or twelve, depending on your mode selection — paint a luminous green reference framework across every plane of the workspace, from the subfloor to the ceiling joists and every stud bay in between.\u003c\/p\u003e\n\u003cp\u003eThe self-leveling pendulum mechanism is the quiet genius here: tilt the unit within 3 degrees of horizontal, and within 4 seconds it locks onto true level with ±1mm accuracy at 10 meters. The 520nm green diodes are the right choice for interior work — 4× more visible than red to the human retina, cutting through ambient jobsite lighting without forcing operators to dim the room. The dual-mode switching (16-line for full-room layout, 12-line for focused wall work) conserves battery and simplifies the line pattern when fewer references are needed.\u003c\/p\u003e\n\u003cp\u003eThis unit sits in the sweet spot between the entry-level cross-line lasers that require constant repositioning and the $800+ rotary lasers that are overkill for interior finish work. It is the laser that a drywall contractor, electrician, and cabinet installer can all pick up from the same charger and immediately use — no manual, no calibration drift, no second-guessing the readout.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eConfidence in a room begins with a line that does not lie.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003chr style=\"margin: 20px 0; border: 0; border-top: 1px solid #eee;\"\u003e\n\u003cdiv class=\"product-features\"\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"list-style: none; padding: 0;\"\u003e\n\u003cli style=\"border-bottom: 1px solid #eee; padding: 8px 0;\"\u003e✦ \u003cstrong\u003e16\/12-Line Dual Mode\u003c\/strong\u003e — Selectable 16-line full-room grid or 12-line focused wall layout; optimizes battery life and line clarity for the task at hand\u003c\/li\u003e\n\u003cli style=\"border-bottom: 1px solid #eee; padding: 8px 0;\"\u003e✦ \u003cstrong\u003e360° Horizontal + Vertical Coverage\u003c\/strong\u003e — Full-room projection with four horizontal planes and cross-vertical lines for simultaneous multi-wall alignment\u003c\/li\u003e\n\u003cli style=\"border-bottom: 1px solid #eee; padding: 8px 0;\"\u003e✦ \u003cstrong\u003e520nm Green Laser Technology\u003c\/strong\u003e — 4× brighter than red lasers; clearly visible at 100 feet without a receiver under standard indoor lighting\u003c\/li\u003e\n\u003cli style=\"border-bottom: 1px solid #eee; padding: 8px 0;\"\u003e✦ \u003cstrong\u003e±1mm\/10m Accuracy\u003c\/strong\u003e — Professional-grade precision suitable for tile layout, cabinet installation, and framing verification\u003c\/li\u003e\n\u003cli style=\"border-bottom: 1px solid #eee; padding: 8px 0;\"\u003e✦ \u003cstrong\u003eSelf-Leveling with Tilt Alarm\u003c\/strong\u003e — Pendulum compensator locks within 3° in ≤4 seconds; visual and audible alarm when out of range\u003c\/li\u003e\n\u003cli style=\"border-bottom: 1px solid #eee; padding: 8px 0;\"\u003e✦ \u003cstrong\u003eRechargeable Battery + USB-C\u003c\/strong\u003e — Extended runtime with any USB-C power source; operates while charging for continuous all-day use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-specs\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul style=\"list-style: none; padding: 0;\"\u003e\n\u003cli style=\"border-bottom: 1px solid #eee; padding: 8px 0;\"\u003e\n\u003cstrong\u003eLaser Lines:\u003c\/strong\u003e 16-line mode (full) \/ 12-line mode (focused)\u003c\/li\u003e\n\u003cli style=\"border-bottom: 1px solid #eee; padding: 8px 0;\"\u003e\n\u003cstrong\u003eLaser Class:\u003c\/strong\u003e Class II, \u0026lt;1mW output\u003c\/li\u003e\n\u003cli style=\"border-bottom: 1px solid #eee; padding: 8px 0;\"\u003e\n\u003cstrong\u003eWavelength:\u003c\/strong\u003e 520nm (green)\u003c\/li\u003e\n\u003cli style=\"border-bottom: 1px solid #eee; padding: 8px 0;\"\u003e\n\u003cstrong\u003eLeveling Accuracy:\u003c\/strong\u003e ±1mm at 10m (±1\/16 inch at 33 feet)\u003c\/li\u003e\n\u003cli style=\"border-bottom: 1px solid #eee; padding: 8px 0;\"\u003e\n\u003cstrong\u003eSelf-Leveling Range:\u003c\/strong\u003e ±3°\u003c\/li\u003e\n\u003cli style=\"border-bottom: 1px solid #eee; padding: 8px 0;\"\u003e\n\u003cstrong\u003eLeveling Time:\u003c\/strong\u003e ≤4 seconds\u003c\/li\u003e\n\u003cli style=\"border-bottom: 1px solid #eee; padding: 8px 0;\"\u003e\n\u003cstrong\u003eWorking Range (Indoor):\u003c\/strong\u003e 100 feet (30m) visible\u003c\/li\u003e\n\u003cli style=\"border-bottom: 1px solid #eee; padding: 8px 0;\"\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e Rechargeable Li-Ion (USB-C charging)\u003c\/li\u003e\n\u003cli style=\"border-bottom: 1px solid #eee; padding: 8px 0;\"\u003e\n\u003cstrong\u003eMount Thread:\u003c\/strong\u003e 1\/4\"-20 and 5\/8\"-11 dual thread\u003c\/li\u003e\n\u003cli style=\"border-bottom: 1px solid #eee; padding: 8px 0;\"\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e CE, FDA, RoHS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-applications\"\u003e\n\u003ch3\u003eApplication Scenarios\u003c\/h3\u003e\n\u003cp\u003eThe Cartesian Grid is a multi-trade workhorse, equally comfortable in the hands of a drywall installer squaring a room, an electrician aligning outlet boxes at consistent heights, a tile setter laying out a bathroom grid, or a cabinet installer mapping upper and lower runs on opposing walls. The 16-line mode handles complex open-plan layouts where all four walls must be referenced simultaneously; the 12-line mode strips the pattern down for focused single-wall or adjacent-wall work. The rechargeable battery eliminates the disposable-cell cost that accumulates over months of daily use — a real savings for crews who burn through alkaline batteries on lesser lasers. The dual mount thread means it drops onto any survey tripod, pole stand, or magnetic L-bracket already in the work truck.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-faq\"\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between 16-line and 12-line mode?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: 16-line mode activates all four horizontal 360° planes and all vertical cross-lines — ideal for full-room layout where you need floor, mid-wall, and ceiling references simultaneously. 12-line mode deactivates one horizontal plane and its associated vertical references, simplifying the pattern for single-wall or adjacent-wall work. 12-line mode also extends battery life by approximately 25% since fewer laser diodes are active.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How accurate is this for tile installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: At ±1mm per 10 meters (±1\/16\" at 33 feet), the Cartesian Grid exceeds the accuracy requirements for professional tile installation. The key advantage is the simultaneous horizontal and vertical projection — you can establish both your level line and your vertical centerline without repositioning the unit. For large-format tile (12×24\" and up), the accuracy holds across a full bathroom floor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use this on uneven ground?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The pendulum compensator self-levels within a 3° tilt range in either direction. For slopes exceeding 3°, the laser lines flash and the audible alarm sounds — you need to reposition the tripod. For manual tilt applications (e.g., stair railings, sloped ceilings), switch to manual\/lock mode which disables self-leveling and lets you project lines at any angle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does it come with a carrying case?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes — included in the package are a molded hard-shell carrying case with foam cutouts, a magnetic L-bracket wall mount, a USB-C charging cable, and a target plate for enhanced visibility in bright conditions. The tripod is sold separately to accommodate different working heights.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does green laser compare to red in real-world use?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The 520nm green wavelength is approximately 4× more visible to the human eye than the 635-650nm red lasers common in entry-level units. In a well-lit interior room, a red laser line may require dimming the lights or using a detector at distances beyond 30 feet; the green line remains clearly visible at 80-100 feet under standard job-site lighting. This visibility advantage directly translates to faster layout work and fewer repositioning cycles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-gallery\" style=\"margin-top: 30px; text-align: center;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Ac6f3e47a87cf44209645e14d15fa10c3H.webp?v=1755135678\" style=\"max-width:100%;margin:10px 0;\" alt=\"Laser Level\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/A86cc6c0c0a104195938763be57b34979g.webp?v=1755135678\" style=\"max-width:100%;margin:10px 0;\" alt=\"Laser Level\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Ae7c477ac7d4244cebbaaa6e95afb1f4br.webp?v=1755135678\" style=\"max-width:100%;margin:10px 0;\" alt=\"Laser Level\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/A94ec1b2203bf42ecbbd11456d1917449E.webp?v=1755135678\" style=\"max-width:100%;margin:10px 0;\" alt=\"Laser Level\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/A4f8e99f1a85a4f8d9beab1b564d9cbe5z.webp?v=1755135679\" style=\"max-width:100%;margin:10px 0;\" alt=\"Laser Level\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Afe54579ed91e4eebab5df3cbd69697cdl.webp?v=1755135678\" style=\"max-width:100%;margin:10px 0;\" alt=\"Laser Level\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Adef6cc8da15742259fd35074d54a8760w.webp?v=1755135678\" style=\"max-width:100%;margin:10px 0;\" alt=\"Laser Level\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Ac1f7e92b57194dc08d3f30fae4bd39f1C.webp?v=1755135678\" style=\"max-width:100%;margin:10px 0;\" alt=\"Laser Level\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/A6ea5739a5f4744c098c71b13f6ffc82ed.webp?v=1755135678\" style=\"max-width:100%;margin:10px 0;\" alt=\"Laser Level\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/A23e0ccff7e3141b1b17d3ed3f7e0b3fa0.webp?v=1755135678\" style=\"max-width:100%;margin:10px 0;\" alt=\"Laser Level\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/A313deb599e134063a50a05fd728b94a39.webp?v=1755135678\" style=\"max-width:100%;margin:10px 0;\" alt=\"Laser Level\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/mig_1_84e7de3c-2424-4739-9344-d47ab21e2881.jpg?v=1782123007\" style=\"max-width:100%;margin:10px 0;\" alt=\"Laser Level\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/mig_2_e731789c-fe05-46e5-b5b6-30eed294ba5a.jpg?v=1782123012\" style=\"max-width:100%;margin:10px 0;\" alt=\"Laser Level\"\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"The Cartesian Grid | 16\/12-Line 4D Green Self-Leveling Laser\",\n  \"description\": \"Professional 16\/12-line dual-mode 4D green laser level with 360-degree horizontal and vertical coverage, self-leveling within 4 seconds, ±1mm\/10m accuracy, and USB-C rechargeable battery for interior construction and finish work.\",\n  \"sku\": \"LL-1612-4D-GR\",\n  \"brand\": {\"@type\": \"Brand\", \"name\": \"EastSupplier\"},\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"url\": \"https:\/\/eastsupplier.com\/products\/the-cartesian-grid-16-12-line-4d-green-self-leveling-laser\",\n    \"priceCurrency\": \"USD\",\n    \"price\": \"NEW_PRICE_PLACEHOLDER\",\n    \"availability\": \"https:\/\/schema.org\/InStock\"\n  }\n}\n\u003c\/script\u003e","brand":"East Supplier Platform","offers":[{"title":"Green 16 Line With Tripod \/ spain","offer_id":47235659956447,"sku":"1005008046899620-Green 16 Line With Tripod-spain","price":135.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Ac6f3e47a87cf44209645e14d15fa10c3H.webp?v=1755135678","url":"https:\/\/eastsupplier.com\/pt-fr\/products\/the-cartesian-grid-16-12-line-4d-green-self-leveling-laser","provider":"EastSupplier Platform","version":"1.0","type":"link"}