.[.A system and method of standardizing modular probe housings so that the standardized probe housings may be incorporated into probes adapted to work with at least one of a multiplicity of manufacturers' oximeters. The probe housings are adapted to matingly engage at least a disposable bandage apparatus and a reusable finger attachment device..]. .Iadd.A pulse oximeter system comprises a finger attachment device having first and second probe couplers, the first and second probe couplers are configured to be matingly engageable with probe housings of a pulse oximeter probe..Iaddend.