... The working room, upper frame and lower frame and top cover are made of high quality imported stainless steel ... long useful life etc.3. Microcomputer intelligent temperature control instrument control, with temperature control and high precision, stable performance, easy ... (°C)AC 220V±10%50HzWave degree of temperature (°C)Room Temperature+10-65Room Temperature+10-100Size of Working Room (mm) ( L× ...