Performance Unit comes standard with a temperature range of -15° C to -25° C. Auto defrost cycle every 6 hours, max air temp in empty freezer: +4.9° C; max air temp in loaded freezer: +0.6° C. Max sample temp in empty freezer: -9.1° C; max sample temp in loaded freezer: -11.2° C. Products designed to operate in ambient room temperatures not to exceed 75° F / 50% RH. Control System All series models come standard with a digital microprocessor temperature controller providing a readout of actual and set-point values. This chamber comes with audible/visual alarms, high and low temperature alarms with remote alarm contacts. Warranties These chambers come with a two year parts and labor warranty. Downloads Download Specification View Product