A transducer holder assembly for attachment to a patient includes a support member with a contact surface and an oppositely disposed connection surface. The support member includes at least one electrode disposed on the contact surface. A first mating member is coupled to the connection surface. A housing is configured to receive and hold at least a portion of a transducer. The housing includes a second mating member configured to releasably mate with the first mating member via a snap-fit mechanism.
