Technical parameters: 1. Specimens quantity to be tested: 30 groups; 2.Temperature control:20±0.5℃ 3. Apparatus resolution:0.1℃ 4. Refrigeration power:0.14KW 5. Heating power:0.4KW 6. Voltage:AC220V 7. Dimensions 790x750x1900 8. Weight: 260kg Features: outer case is made of cold rolled sheet, while inner container is made of high quality stainless steel. Overall pu: polyurethane foamed insulation layer, stainless steel shelves, drawers design and water plates obtain good heat preservation property and corrosion resisting property.