Delta T specializes in industrial heating applications, offering custom heating systems, industrial heaters, temperature controls, benchtop furnaces, and temperature sensors. They provide a range of products including temperature controllers, electrical power switching solutions, and Keith Company Bench Top Furnaces. Delta T focuses on advising clients on efficient heating methods, energy-saving strategies, and selecting the best heaters and temperature measuring methods. They also distribute Benchtop Furnaces through Keith Company and offer various temperature control and power switching methods for industrial heating applications.