The Refrigerated Circulating Bath LTC 4 from Grant is a versatile system that can be used in the laboratory with a comprehensive specification to suit low temperature applications. There is an Optima™ digital thermostat for precise temperature control assembled with TX 150. The range of temperatures is -30 to +100°C and the refrigerated circulator includes a powerful integral pump that allows temperature-controlled fluid to be circulated to external devices. The refrigerated circulator has a user calibration facility for accuracy at the required operating temperature. It also includes a visual alarm and countdown timer to alert the user when attention is needed.