This Fisher Scientific Isotemp 655D gravity-convection incubator has temperature range: 30 to 60c. Uniformity: +/-1.5C. Ventilation rate: 12 exchanges/hour. Chamber Capacity: 5.5 cu.ft. Digital readout. Has steady, unobstructed airflow and efficient heating. Designed for drying & staining of slides, tissue culture work, incubation of antibody tests, curing, pharmaceutical stability tests, microbiological determinations, crystallization studies, incubation of hydroxy-steroids and similar applications. Has a tight fitting, transparent tempered inner glass door to allow you view specimens without disturbing chamber temperature. Includes 1 adjustable shelf where available from stock.