SIGMAHLR provides a comprehensive line of dependable, high-quality safety control instrumentation to a wide variety of companies across the globe. Our service area stretches from the United States and Canada to Asia and the Pacific Rim – and includes multiple companies that distribute our exclusive SIGMAHLR products. Numerous oil and gas producing customers around the world count on us to help keep their employees, equipment and the environment as safe as possible. Member of The Sturrock and Robson Group.