The Grant Optima™ TX150 series of digitally controlled refrigerated circulating baths provides outstanding performance for routine and sophisticated applications requiring accurate temperature control in the range of -47 to 100°C. A choice of 5 refrigeration units combined with a powerful TX150 heating circulator offers a cost-effective and efficient solution for low temperature applications. LTC4 kit is available as a ready assembled system including TX150 heating circulator mounted on the R4 refrigeration unit and comes supplied with insulated tubing and clips.