constant-temp heating bath the heating bath especially used to rotary evaporator can be also used to the heating of various reactions. the pot can be lifted freely. the pot and heating wires are made of whole stainless steel. the probe is inner. the temperature of the heating bath is controlled intellectually. the wave change of the temperature is merely ±2℃ model w2-100 w2-100s w2-180sp w5-100sp w10-100sp w20-150sp w50-150sp old model w201b w201s w201cs 　 　 　 　 temp(℃) 0～100±2 0～100±2 0～180±0.2 0～100±0.2 0～100±0.2 0～150±0.2 0～150±0.2 power(kw) 1.5 1.5 1.5 2 3 5 9 volume(cm) φ26×15 φ26×15 φ26×15 φ28×17 φ35×25 φ45×27 φ55×32 life distance(mm) / 100 180 120 180 180 180 voltage(v) 220 220 220 220 220 220 380 *the minimum temperature for using is +5℃