Good, Working Working Working Welch Allyn MicroTymp. Tympanometer 23600 with Printer / Charger and NEW Battery.The item "Working Welch Allyn MicroTymp Tympanometer 23600 with Printer & NEW Battery" is in sale since Monday, December 05, 2016. This item is in the category "Business & Industrial\Healthcare, Lab & Life Science\Medical Instruments\Exam & Diagnostic\Otoscopes". The seller is "greatequipment619" and is located in Lacey, Washington. This item can be shipped worldwide.