1. - Stainless steel inner chamber, foursquare senicicle transition, convenient to clean; space between shelves is adjustable.
2. - Micro-computer control system; LCD with functions of time setting, parameter memorizing and power reset recovering.
3. - Fluoride-free refrigeration and gentle breeze circulation.
4. - Test hole of Φ52mm at left side of container.
5. - Double door seal; tempered glass silicon rubber seal inner door and magnetic rubber seal outer door, which are convenient to on/off; inner chamber with light for convenient observation.