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------------------------>> Pro Staff Sonar Advisor
I had to buy high speed dual beam transducer for mine
You have to have both. The included transducer only works for si and di, and only works up to seven mph. You'll also need a y cable to hook up both
So you're saying the 899 doesn't come with a 2d ( non si or di) transducer?
*899ci HD SI Combo comes with the compact SI xducer (83/200/455kHz only)...but it can be traded in to HB for the HDSI (83/200/455kHz/800kHz)...with a small $$ upgrade fee...
http://www.humminbird.com/Faq.aspx?TaxonomyId=91A1766
Rickie
www.podunkideas.com <--Click here
------------—————
https://www.crappie-gills-n-more.com/
https://cornfieldfishinggear.com/
------------------------>> Pro Staff Sonar Advisor
No it comes with a combo si and di, but you have to have a dual beam high speed transducer for your traditional 2d sonar. The di/si trans. Only works up to 7 mph. You will also need the y cable to hook them both up.
Sorry, misread your post and repeated myself. It's all pretty easy to install. Also you must hook directly to battery with a 3 amp fuse. You also may want the ferrite choke to cut down on interference.