The Model LI6P BOD incubator is thermoelectric cooled, eliminating the need for a refrigeration compressor. The incubators include a mechanical convection system to ensure even air distribution, digital temperature set controller, over temperature limit control, and a temperature display. Two 75 pound capacity shelves are included. A one amp interior outlet allows the use of shakers, stirrers, roller bottles or BODTrak apparatus. Low Temperature Incubators are ideal for testing sewage and wastewater as well as other low room temperature applications. 120V Exterior dimensions: 30 x 31.5 x 33.5 in (76.2 x 80.01 x 85.09 cm)