Echo Altimeter Features Applications Technical Software   This page provides more detailed information on the Echo Altimeter sonar. Simply click on the relevant link to download brochures, operational manuals in printable PDF format or demonstration software. You will need Adobe Acrobat Reader to access PDF documents. If you don't have this, then get Adobe Acrobat Reader free here. To download PDF file, right click and select "Save Target As". Echo Brochure (1.3MB)