I have a Eagle Fishmark 320 I got at Bass Pro on sale for $139.99 and it was well worth the money. Best "cheap" graph I ever bought. One small problem---temp reading takes a little while to show accurate reading. I have the transducer with built in temp sensor mounted on my trolling motor. So, it reads air temp and then, when you stick it in the water, it takes a while to read correctly. Not a big deal--more of an inconvenience then a problem.