Mesa Laboratories, Inc. is a multinational manufacturer, developer, and seller of quality control products and services. The Company operates through four segments, Sterilization and Disinfection Control, Biopharmaceutical Development, Instruments, and Continuous Monitoring. The Sterilization and Disinfection Control segment manufactures and sells biological, cleaning, and chemical indicators which are used to assess the effectiveness of sterilization and disinfection processes in the hospital, medical device, and pharmaceutical industries. The Biopharmaceutical Development segment develops, manufactures, and sells automated systems for protein analysis (immunoassays) and peptide synthesis solutions. The Instruments segment designs, manufactures, and markets quality control hardware and disposable products. The Continuous Monitoring segment develops, and markets systems which are used to monitor various environmental parameters such as temperature, humidity, and differential pressure.