The Temperature Measurement System for the Cryopreservation of Cardiovascular Homografts (TemperMed) is an automatizated system for the register, storage and later data manipulation of the temperature of biological tissue in a cooling process, and its obj ctive is to o timize and to guarantee a technique that allows to conserve the quality of tissue processed, with a decrease of costs in the process. The developed system allows us to register the temperature of two homografts simultaneously; it does not require the personnel permanence during the time demanded by the process; it introduces guarantees of precision in the temporary intervals between one and anRevista Mexicana de Ingenieria Biomedica • volumen XXIII • numero 2 • Septiembre 2002 9 0