... warranty. 4,CE/PSE/ROHS 5,OEM/ODM Electronic Moisture proof box for camera Basic Information Name Model Technical Parameters ... Size(mm) Inside Size(mm)Capacity(L Color Guarantee Meter control small dry box AP-21L 3.5V 6W W380 ... fast, several hours can be effect. Electricity can absorb moisture, controller automatic adjustment, humidity accurately.2, patent dehumidification heart, no compression, no ...