Take a few moments to get to know some of the features and components of your DemerBox.
Which DemerBox do you have?
In June of 2019, DemerBox launched the DB2 - found on the right. This DemerBox is the same size as the original, but built in some new features. The easiest to recognize is the external switch plate highlighted above.
All DB2 models have UP/DOWN volume controls and battery indicator lights. The volume for the original DemerBox is controlled solely by your connected device and does not include indicator lights.
Note: If you have a custom switch, the labeling might look different while the functionality will remain the same.
GET TO KNOW YOUR DEMERBOX
The Pressure Equalization Valve
That small black knob/button on top of your DemerBox is the Pressure Equalization Valve (Purge Valve). It is a simple device that prevents your case from vacuuming shut when at high altitudes. It consists of a housing with a hole through it that is covered with a thin Gore-Tex® membrane. According to the GoreTM tech sheet: “The microporous expanded polytetraflouroethylene (ePTFE) membrane continuously allows the free passage of gases and vapours, equalizing the pressure differential between the enclosure and ambient before it builds to the point that a seal is compromised. Water, dust and dirt are repelled by the hydrophobic membrane, thereby protecting expensive and sensitive electronics”.