... and have high reliability and efficiency4.Hating device is anti-pressure stainless steel capacity , ... arrangementInstrument adjusting range(°C)-100 to 400ProtectionDelay,leakage,overcurrent, overheatRefrigeration systempower2.2KW3KW4.4KWcooling mediaR22Circulating ... function heating refrigerating, circulating2. Safe device is advanced.3. Excellent device for rotary evaporator, glass reactor ...