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 comes standard with a Fuji PXF4 (PID – Fuzzy Logic) controller providing a readout of actual and set-point values. This chamber comes with audible and visual alarms, remote monitoring and a numeric password protection. Chamber has a cleanable solid front face with control panel section guarded by clean plastic enclosure. Plenty of alternative customized options are available. Warranties Darwin Chambers Company offers 24 hour technical support throughout the lifetime of your chamber. In addition to standard warranties, we also offer extended warranties for cooling components, parts and labor. We also provide qualifications, validations and preventive maintenance services at an additional cost. Please ask for a quote. Downloads Download Specification View Product