There are various ones for about 1k on ebay eg. <a href="http:&#x2F;&#x2F;www.ebay.com&#x2F;itm&#x2F;A-Portable-Digital-Ultrasound-Scanner-Machine-System-3-5-Mhz-Convex-Probe-3D-&#x2F;201522624091?hash=item2eebaf365b:g:jS4AAOSwT~9Wlxuc" rel="nofollow">http:&#x2F;&#x2F;www.ebay.com&#x2F;itm&#x2F;A-Portable-Digital-Ultrasound-Scanne...</a><p>Don&#x27;t know if that&#x27;d the kind of thing or too basic?