New Company information at Design Build Network New and updated information from companies www.designbuild-network.com http://www.designbuild-network.com/ en-us http://www.designbuild-network.com/ New Company information at Design Build Network http://www.designbuild-network.com/content/images/logo_big.gif HSI Fire & Safety Group-Smoke and Heat Detector Testing Equipment and Products http://www.designbuild-network.com/contractors/fire_detection/hsl/ http://www.designbuild-network.com/contractors/fire_detection/hsl/ <img src='http://www.designbuild-network.com/contractor_images/hsl/logo.gif' alt=''/><p>Home Safeguard Industries is the worlds’ leading manufacturer of aerosol smoke alarm testers. Introduced in 1979, 25S Smoke Check? is the original and still the best product for testing smoke detectors. HSI has built a global presence serving the … Tue, 15 May 2012 23:00:00 GMT