A Legacy of Innovation
Gems Sensors was founded in 1955 by Edward H. Moore, who developed the company’s first liquid level indicator in his basement. Partnering with Gordon Seigle, they named the company “GEMS” (GS for Gordon Seigle, EM for Ed Moore). Their first commercial success—a bilge switch for the boating industry—set the stage for decades of innovation in sensing technologies.
Global Impact & Innovation
Today, Gems Sensors is a trusted name in industrial sensing, shipping over five million sensors annually. Our products support critical applications in medical devices, transportation, water management, and industrial automation. With ISO-certified facilities across North America, Europe, and Asia, we continue to lead in precision-engineered solutions.
Why Our History Matters
Our legacy reflects a commitment to engineering excellence, customer collaboration, and continuous innovation. From a single product to a global portfolio, Gems Sensors has remained focused on solving real-world challenges with reliable, high-performance sensing technologies.

