SH420F SH220F Temperature range Room temperature +5 - 450℃ · Temperature accuracy ±1℃ · Heating method Infrared heating and high-purity graphite conduction · Heating insulation method Unique air duct insulation technology · Digestion tube capacity 300mL · Capacity per batch 20pcs/batch · Power supply 220 VAC±10% 50HZ · Power 3600W · Dimensions 515mmX421mmX211mm Net weight 25Kg