Accurate electronic temperature control of contents within 2(degree)C of set point, Large, easy-to-read digital temperature display with resolution to 0.1(degree)C, User selectable temperature set point between -12(degree)C and -25(degree)C, factory preset to -20(degree)C, high and low temperature alarm values and alarm delay time period., Visual and audible alarms for over temperature, under temperature, and door ajar events, One full-depth wire shelf