DRYER & STORAGE BOX: the dryer box is specifically made for the purpose of drying 3D printer filament, intended to remove the moisture from a spool of filament caused by ambient exposing. Filament can be used while in the box, the dryer function as both storage box and filament holder. Also 2 slots at the corners were designed for placing dessicant,keep your filament in longer drying condition.Sealed protection, comprehensive dust-proof and damp, no impurities. US Plug, input voltage 110V-120V INFINITE ADJUSTABLE TEMPERATURE & HUMIDITY MONITOR: based on infinite adjustable temperature mode, you can adjust specific heating temperature to accommodate needs of various filaments by simply turning the knob from 40-65, with main types of filaments marked for your fast use. Equipped with individual humidity sensor, measurement range from 10%-99% (NOTE: A76/LR44 button battery has ALREADY included), real-time data will be indicated by the LCD monitor, the dryer is designed to reduce humi