Provides a simple, convenient, and instantaneous means of detecting subclinical mastitis. MAS-D-TEC™ measures electrical conductivity in a small sample (2 ml) of milk. This instrument will detect increases in conductivity long before other clinical symptoms are evident. The unit’s electronic circuitry is completely enclosed in a strong, waterproof case for long, dependable service in the milking parlor environment. Designed for handheld operation, it is powered by a standard “9V” battery (included). 1,000’s of cows can be tested on a single battery. One-year warranty.