Mesa Laboratories Inc provides high-quality control products and services. Its instruments division manufactures quality-control instruments and disposable products for the pharmaceutical, food and beverage, medical device, industrial hygiene, air sampling, and semiconductor industries. The biological indicators division provides testing services, as well as biological and chemical indicators used to assess the efficacy of sterilization processes. The continuous monitoring division markets systems used to monitor environmental parameters, such as temperature and humidity. The cold chain division monitors the parameters of products in a cold chain and provides related consulting services. The instruments and biological indicators businesses generate the largest proportions of revenue.