Dear friends, I have buy a new fishfinder typ piranha max 153, but I don't have a german instruction manual. I'm so sorry, but my english is not very good to read the english version. I'm very thankful about you , if you can send me a german manual for the fishfinder piranha max 153. Its also possible to send me this by e-mail. Thank you so much for your help Nice reagards Klaus Merfeld