Newman Medical is proud to offer a full line of Dopplers with the performance and durability you expect to meet your application - obstetrical or vascular. The DigiDop 300 non-display Doppler has unique features no t found in other Doppler systems such as Digital Optimized Processing (DOP™). Each Newman Medical Doppler and probe must pass a series of comprehensive tests to assure quality and the durability of each product. Its features include a tough and durable polycarbonate and stainless steel case, Digitally Optimized Processing – DOP™, ‘Unbreakable’ magnetic probe holder, all probes are interchangeable, each main unit comes with choice of one probe, user replaceable cord. It also includes a user replaceable cord and can be powered by 3 AA-batteries.