
In early April of 1938, Gerald and Sarah Holmes tested, patented, and trademarked their fire detection system and the Protectowire Company Inc. was born. In the 1960s, with no heirs of their own, Gerald and Sarah gradually transferred ownership of the company to the Sullivan family. Andrew Sullivan, CEO and Chairman of the Board, currently oversees the company today. Protectowire FireSystems’ headquarters is located in Pembroke, Massachusetts just down the street from the barn where the original Protectowire Linear Heat Detector was invented.
Eighty years later, Protectowire FireSystems continues to be the global leading manufacturer of Linear Heat Detection Systems.

The Protectowire Distribution Training Program is designed to provide a broad base of knowledge for the selection and installation of Protectowire Linear Heat Detectors and Control Equipment. This course is divided into seven sections, with each covered by lecture followed by an optional half-day, hands-on lab.

Protectowire FireSystems is dedicated to delivering products designed, engineered, manufactured, and tested with the highest degree of performance, reliability, and quality. Our third-party independently reviewed and approved ISO-9001:2015 Quality Assurance Program forms the basis of our quality commitments. Our quality commitment assures that our products and services are reliable and efficient while conforming to required statutory, environmental, and safety regulations and to maintain customer satisfaction at the highest economic level.