A portable diagnostic tympanometer , the battery-operated, Entomed TY-101, offers unparalleled flexibility and top-of-the-line features. With multi-frequency tympanometry, Ipsi/Contra reflexes, ETF, and acoustic reflex decay, a comprehensive assessment of middle ear reflectance and conductance is at your fingertips. With the option to add Otoacoustic Emissions (OAEs), including FMDPOAE® pressurized OAEs, clinicians have access to an even more detailed assessment of patients' middle and inner ear function.