0 Wholesale Manufacturer of Directional LED Signs & Signals Information Center > LED Signs 101 > Character Height Visibility Chart Character Height Visibility Chart SIGNS 101 Choosing the Right Toggle Switch Color Chart Custom Options Energy Efficiency Locating the Serial Number Visibility Chart Click here to login or register. Where To? Products Accessories Mounting Stock Signs Information Center About Us Login/Register Contact Us Sitemap Let's Be Social! Follow us on your favorite social networks. About Signal-Tech We are proud to be a manufacturer of LED signs. Our customers are our #1 focus! We are committed to providing the best value, the quickest lead time and customized designs without a custom price tag. If you need a high quality sign and you need it fast, call us today, 877-547-9900. We accept VISA, MasterCard, American Express and Discover. Click here to learn more. Contact Us 4985 Pittsburgh Ave Erie, PA 16509 sales@signal-tech.com p - 814-835-3000 t - 877-547-9900 f - 814-835-2300 Copyright © 2002-2021 Signal-Technologies Inc. All Rights Reserved | Privacy Policy | Terms of Sale