HX Series Table-top Thermostatic Recirculator provide high and low temperature liquids in the temperature range of -40℃~105℃ to meet the needs of thermostatic instruments that react with high and low temperatures. Especially suitable for use with chemical reaction kettle, fermenter, rotary evaporator, electron microscope, Abbe folding instrument, evaporation dish, biopharmaceutical reactor and other experimental equipment. Advanced internal circulation and external circulation pump system, internal circulation makes the instrument temperature uniform constant, external circulation pump output 16 L/min ~18 L/min in high flow, low temperature liquid. 8 liters ~40 liters of working tank volume can also be put into a variety of containers containing biochemical reagents or tested samples, directly high and low temperature test or test, to achieve a multi-purpose machine.