The SpectrAlertAdvance clear dual strobe with speaker expander plates by System Sensor of St. Charles, Ill., combine the functions of two to three notification devices on a single mounting plate ...

St. Charles, IL (March 1, 2012) – System Sensor announced that its new SpectrAlert Advance Dual Strobe and Dual Strobe with Speaker Expander Plates can cut costs, simplify installation ...

"When we tested products for this application, System Sensor speaker strobes were the product that worked the best with the acoustics in the Capitol building. And when we were awarded the job to ...

“System Sensor speaker strobes are easy to install, and the plug-in design is great. The quality is excellent, especially with canned messages,” says Thompson. In addition to heading the update ...