From stethoscopes to sphygmomanometers, Labtron diagnostics feature quality products and a wide assortment. Graham-Field is one of the world's leading manufacturers of medical products in the healthcare industry, with more than 50,000 items used in hospitals, extended care facilities, clinics, and at-home care. Our products and services have been designed to enhance the quality of life of the people that use our products and those that care for them.