Difference between AD and DHC cabinets

[Digi-Cabi]

AD series uses analogue control (via a dial), while DHC uses a digital setting.

The desired humidty of storage of lenses is between 45-55% Relative Humidity (RH).

Digital control allows one to set the desired humidity level easily while analogue control will require one to be more patient as there are no markings on the dial to indicate the desired humidity level.

[Poseidon]

Go for the digital one always!!

[Selina]

Suggest you read the sticky located below:
http://www.clubsnap.com/forums/showthread.php?t=481380