MAICO Diagnostics, Excellence in Hearing Screening. Hearing instruments designed to be on the front line of hearing assessment. Whether you need an efficient tool that is easy to use on a daily basis or equipment that provides cost-effective daily testing, you will find it here. Our complete product line includes: OAEs, Audiometry, Select picture audiometry, Tympanometry. Visit www.maico-diagnostics.com/us or call 888-941-4201 for more information.