Open Bath Circulator with Plexiglas bath tank for internal and external temperature applications JULABO Heating Bath Circulators with stainless steel, Plexiglass or Makrolon bath tanks can be used for internal or external temperature applications. However these units are mainly used for internal temperature tasks performed directly in the bath. Temperature applications with external, closed systems are possible via the attachable pump connectors. There are a wide selection of models within the Economy and TopTech series’ with different bath sizes and features. Different test tube racks and bath covers are available as accessories. Your advantages MULTI-DISPLAY (LED) for actual and setpoint values, warning/safety functions and pump stage Keypad for setpoints, warning/safety values and menu functions PID2 temperature control with drift compensation ATC3 3-Point-Calibration Early warning system for low liquid level (DBGM 203 06 059.8) Adjustable high temperature cut-out, visible via display RS232 interface for online communication