1. Cost lowering through nitrogen(N2)gas replacement and combination N2 with other substanc
2. Clearndicated ,Convenient display Temperture(left/green)Humidity(right/red)
3. Door frame covered with magnet rubber keeps reliable air-tightness.4. Tempered glass window.lock-key handle5. Humidity controller maintains atable constant humidity6. Power disribution lamp and in operation lamp7. Sturdy and durable shelf (tolerance:100kg/per)is movable up and dowm.8. Most economical,Running cost is electricity alone.9. Operation in normal temperature ,noiseless ,tremor free ,long life.10. Special desiccant is DRY-UNIT is semi-permanent.