Featuring horizontal recirculating airflow to ensure temperature uniformity of ±5.6°C at 538°C, Models RAF and RFF are suited for annealing, aging, stress relieving, and other process critical applications. Class A Model RFF is designed to meet NFPA 86 requirements for applications that involve flammable solvents. Available in cabinet and benchtop sizes (4.2, 19, and 35 ft³), furnaces have Protocol 3™ microprocessor-based temperature and hi-limit controller with LCD and real-time clock.