Important Characteristics Temperature range:00C to 700C Temperature range with light:100C to 600C Humidity range: 10% to 80% RH Model 240/720:2/3 positionable illumination cassettes, each with 5 florescent tubes APT.line TM preheating chamber technology Adjustable fan speed Humidity regulation with capacitative humidity sensor and vapor humidification Controller with time-segment programming Display via color LCD monitor Tightly-sealed inner dor amde of tempered safety glass Models 240/720: 2/3 stainless steel racks Access port with silicone plug, 30mm, left Class 3.1 independent temperature safety device (DIN 12880) with visual and audible temperature alarm Computer interface: Ethernet Door heating