--- product_id: 58369589 title: "NWI NSL100B Siteline Level 20x Magnification, 1/4 Inch Accuracy at 100ft, 200ft Range Surveying Equipment, Plumb Bob Manual Precision Survey Transit" brand: "nwi northwest instrument" price: "€ 318.98" currency: EUR in_stock: true reviews_count: 4 category: "Nwi Northwest Instrument" url: https://www.desertcart.hr/products/58369589-nwi-nsl100b-siteline-level-20x-magnification-1-4-inch-accuracy store_origin: HR region: Croatia --- # 1/4 inch accuracy at 100ft for reliable measurements 20x magnification for crystal-clear precision IP54 dust & water resistance for rugged durability NWI NSL100B Siteline Level 20x Magnification, 1/4 Inch Accuracy at 100ft, 200ft Range Surveying Equipment, Plumb Bob Manual Precision Survey Transit **Brand:** nwi northwest instrument **Price:** € 318.98 **Availability:** ✅ In Stock ## Summary > 🔧 Elevate your site game with precision that won’t quit! ## Quick Answers - **What is this?** NWI NSL100B Siteline Level 20x Magnification, 1/4 Inch Accuracy at 100ft, 200ft Range Surveying Equipment, Plumb Bob Manual Precision Survey Transit by nwi northwest instrument - **How much does it cost?** € 318.98 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/58369589-nwi-nsl100b-siteline-level-20x-magnification-1-4-inch-accuracy) ## Best For - nwi northwest instrument enthusiasts ## Why This Product - Trusted nwi northwest instrument brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Ready When You Are:** Comes complete with plumb bob and manual—out-of-the-box precision for busy professionals. - • **Accuracy You Can Trust:** Achieve consistent 1/4 inch accuracy at 100 feet, minimizing costly errors on every job. - • **Built for the Elements:** IP54-rated weather resistance and a protective rubber lens jacket keep your tool working rain or shine. - • **Portability Meets Performance:** Lightweight design with a durable carrying case ensures seamless transport between sites. - • **Precision that Powers Projects:** Experience sharp, 20x magnification for flawless site alignment and foundation leveling. ## Overview The NWI NSL100B Siteline Level is a professional-grade manual transit level featuring 20x magnification and 1/4 inch accuracy at 100 feet, designed for construction, surveying, and road grading. Its rugged IP54-rated weather resistance and durable aluminum build ensure reliability in harsh outdoor conditions. Lightweight and portable with a carrying case, it includes essential accessories like a plumb bob and manual, making it ready for immediate use on any job site. ## Description 20x Builders Level. Review: It's perfect for drawing straight lines - This little guy is very handy and sufficiently accurate for the price. It's a decent budget transit. It's perfect for drawing straight lines, but it has some accuracy problems for other tasks: 1) The level on it isn't mounted correctly. I can get it so that it's perfectly level facing north and east, for example, but then it's slightly off facing south and west. If I correct south and west, it's then slightly off facing north and east. Essentially, it's not possible to get it level in four directions, which could spell trouble for spotting accurate elevations. However, as long as I'm only leveling in a 90º range of motion, it's fine. 2) There's something wrong with the degree markers on the bottom. If I draw a straight line with the transit, zero the gauge, and then turn it exactly 90º and draw another straight line, the lines are only 89º apart. I'm not sure how, but that's what I've observed over and over again. Makes it pretty useless for surveying corners of buildings or anything that requires a precise degree measurement. Review: Not accurate, not repeatable. - Not accurate, not repeatable. Have shot over 100 lines with this device and largely wasted my time. Cannot rotate and return to same angle even though compass scale indicates I did. Design flaw, not a damaged unit. Returned. ## Features - PREMIUM 20x MAGNIFICATION FOR ACCURATE READINGS: Our survey equipment obtain perfect precision with the NWI NSL100B Siteline Level with a 20x magnification lens of superior quality. This transit level is perfect for big construction, surveying, and road grading jobs, providing clear and sharp view over long distances. Its high-precision magnification makes it suitable for professionals who require quick, accurate results in applications such as foundation leveling and site alignment. - EXCEPTIONAL ACCURACY AND LONG RANGE: MEASUREMENTS: This Northwest instrument, NWI Siteline Level, is meant to give readings that are more reliable and precise, with the leveling accuracy up to 1/4 inch at 100 feet and workable range at up to 200 feet. It's highly ideal for making consistent precision possible anywhere, eliminating potential errors and wasting so much time; hence, appropriate for construction, grading, or alignment works for the accurate measure of everything needed on site. - BUILT TO LAST WITH WEATHER RESISTANCE: This land surveyor tools are built to withstand tough conditions on the job site. The NWI NSL100B has a durable rubber lens jacket that protects it from the elements and makes it last longer. With an IP54 dust and water resistance rating, this contractors transit level remains reliable even in harsh weather conditions, making it perfect for outdoor surveying, construction, and road projects. - PORTABLE AND EASY TO TRANSPORT: The NWI NSL100B Siteline builders level has a convenient carrying case for safe storage and easy transport. This carrying case is important for moving between project sites or simply storing the level when not in use. The lightweight design of the optical level makes it easy to carry while offering robust durability and functionality for professionals on the go. - INCLUDES EVERYTHING YOU NEED TO GET STARTED: This package contains everything you need to level with precision. You will get a plumb bob and manual to help you set up the NWI NSL100B Siteline Level. This is ideal for contractors, land surveyors, and builders. It is ready to use right out of the box. With all the tools included, you will have the accuracy and convenience you need to tackle a variety of projects with ease. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000KB1ZHQ | | Best Sellers Rank | #582,310 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #995 in Levels | | Brand Name | NWI Northwest Instrument | | Color | Yellow | | Customer Reviews | 4.2 4.2 out of 5 stars (14) | | Global Trade Identification Number | 00088688101219 | | Included Components | 1/4-Inch Collet | | Manufacturer | Northwest Instrument, Inc. | | Material Type | Aluminum | | Operation Mode | Manual | | Style Name | Accuracy: 1/4" at 100 feet | | UPC | 088688101219 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** NWI Northwest Instrument - **Color:** Yellow - **Material:** Aluminum - **Operation Mode:** Manual - **Style:** Accuracy: 1/4" at 100 feet ## Images ![NWI NSL100B Siteline Level 20x Magnification, 1/4 Inch Accuracy at 100ft, 200ft Range Surveying Equipment, Plumb Bob Manual Precision Survey Transit - Image 1](https://m.media-amazon.com/images/I/71RGWETfRuL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐ It's perfect for drawing straight lines *by N***S on September 14, 2014* This little guy is very handy and sufficiently accurate for the price. It's a decent budget transit. It's perfect for drawing straight lines, but it has some accuracy problems for other tasks: 1) The level on it isn't mounted correctly. I can get it so that it's perfectly level facing north and east, for example, but then it's slightly off facing south and west. If I correct south and west, it's then slightly off facing north and east. Essentially, it's not possible to get it level in four directions, which could spell trouble for spotting accurate elevations. However, as long as I'm only leveling in a 90º range of motion, it's fine. 2) There's something wrong with the degree markers on the bottom. If I draw a straight line with the transit, zero the gauge, and then turn it exactly 90º and draw another straight line, the lines are only 89º apart. I'm not sure how, but that's what I've observed over and over again. Makes it pretty useless for surveying corners of buildings or anything that requires a precise degree measurement. ### ⭐⭐ Not accurate, not repeatable. *by N***Y on May 3, 2025* Not accurate, not repeatable. Have shot over 100 lines with this device and largely wasted my time. Cannot rotate and return to same angle even though compass scale indicates I did. Design flaw, not a damaged unit. Returned. ### ⭐ Hey, Amazon! *by D***G on July 1, 2012* Dear Amazon.com, No one is ever going to buy one of these without at least SOME information. Furthermore, please learn the difference between a transit and a builder's level for the sake of searching out one or the other. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/58369589-nwi-nsl100b-siteline-level-20x-magnification-1-4-inch-accuracy](https://www.desertcart.hr/products/58369589-nwi-nsl100b-siteline-level-20x-magnification-1-4-inch-accuracy) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-04-23*