Digital LED Microprocessor temperature controller with Hi/Lo audible and visual alarm Remote alarm contacts Adjustable temperature control range: -15?C to -25?C, factory preset at -20?C Continuous product temperature display Product sensor with glycerin bottle Power supply switch Exterior cabinet front, sides and back are painted white Exterior cabinet top and bottom are galvanized steel Interior cabinet liner painted white Cabinet is foamed-in-place with CFC free high density polyurethane foam insulation Glass door(s), full size, double pane, with anti-condensate heater wires Heavy duty door pivot hinges Centered key door locks (2 keys) Pull door handles(s) Four casters (2 locking) 3 epoxy coated wire shelves per door Perimeter anti-condensate door opening heater wires Magnetic door gasket Interior LED light Air cooled condensing unit Top mounted forced air refrigeration system Automatic defrost and condensate evaporation UL, C-UL listed Warranties: 18 month parts and labor, 5 year compressor (US and Canada) 18 months parts (International)