Feature RH range:20-60%RH Display: LED digital display, touchable microcomputer panel, temperature and humidity switchable display. Shelves: 4 Power consumption: av 16W Voltage:110-220V Characters 1) Fireproof design: using 3-layer steel and foam alloy carbon sand for body to prevent high temperature in cabinet. Special patent embedded culvert structure prevents burning. 2) Anti-damp and module proof design: microcomputer LED digital display, temperature and humidity switchable display 3) Anti-theft design: hardness body, anti-theft code lock, thick steel door, difficult to welding and cutting. 4) Anti-magnet and anti-static design: thick steel anti-magnet, dehumidification machine has special anti-static design. 5) Safeguard design: the machine is equipped with power-down circuit, power-off memorial device; noiseless, no counter humidity, no condensation dripping, no heating. 6) Suitable for storing: important file, documents and valuables.