InventHelp Inventor Develops New Railroad Crossing Alert (NJR-300)

PITTSBURGH, April 7, 2026 /PRNewswire/ -- "I wanted to create a supplemental warning system to warn drivers and pedestrians if a train is coming at a railroad crossing," said an inventor, from Micco, Fla., "so I invented the BLUE SENTINEL. My design offers a distinctive warning to ensure...