Diagnostic breather dryer

A breather for a reservoir, said breather comprising:

• a housing including a plurality of first openings in the housing configured to be in fluid communication with air outside of the reservoir, and a plurality of vent plugs configured to be coupleable to at least one of the plurality of first openings;
• a second opening of the housing configured to be in fluid communication with air inside the reservoir;
• desiccant positioned within the housing;
• and
• a cap including a valley therein configured to correspond to a lip at a top portion of the housing to form a seal when placed in contact, the cap having a domed exterior surface.

A breather for a reservoir, said breather comprising:

• a housing;
• desiccant positioned within the housing;
• a plurality of first openings in the housing configured to be in fluid communication with air outside of the reservoir;
• a second opening of the housing configured to be in fluid communication with air inside the reservoir;
• a first humidity sensor positioned within the housing and associated with the desiccant, wherein the first humidity sensor is operable to provide a first humidity signal indicative of a first humidity level adjacent the first humidity sensor;
• a second humidity sensor positioned within the housing, wherein the second humidity sensor is operable to provide a second humidity signal indicative of a second humidity level adjacent the second humidity sensor;
• a controller communicatively coupled to the first humidity sensor and the second humidity sensor, wherein the controller is operable to determine an end of life condition of the breather based at least in part upon the first humidity signal received from the first humidity sensor and the second humidity signal received from the second humidity sensor;
• and
• a display configured to display an indication of the end of life condition.