=function= Humidity dry boxes are designed to protect the electronic gadgets and valueable collections from moisture damage. A1B type is adjustable from 1%rh to 50%rh. The interior environment is controlled by precise digital controller. The storage condition of relative humidity and temperature can be traced and graphed easily by dr. Storage!|s data logger. =specification= Humidity range: 5~50%rh (adjustable) External dimension: w1200*d672*h1820mm Internal dimension: w1198*d645*h1618mm Capacity: 1250l Shelves: 5 shelves Color: black Voltage: 110v/230v (select voltage in advance) Display precision: +/- 3%rh, +/- 0.5 Software: Humidity Manager for drawing the curve of RH and Temp. Structure: 1mm thick carbon steel with anti-static paint. Door: handles, airtight magnetic sealers and anti-static glass. Wheel: four anti-static 3inch wheels, two of them with brakes. Grounding wire: 1.0MΩ.(Length 2.0M) External dimensions (mm) W1200*d672*h1820 Internal dimensions (mm) W1198*d645*h1618 N.W.139kgs g.W.214kgs