Temperature range: 4°C to 100°C. APT line preheating chamber technology. Adjustable fan speed. Electric cooling with Peltier module. Controller with time-segment and real-time programming. 2 stainless steel racks. Units up to 115 liters are stackable. Class 3.1 independent temperature safety device (DIN 12880) with visual and audible temperature alarm. Computer interface: Ethernet. Data recording and USB interface.