http://cgi.ebay.com/ebaymotors/FloS...ssories_Gear&hash=item4aadee3611#ht_500wt_956
I put a flo scan like the one above in my boat. it works great.... very accurate and it has paid for its self over and over. MY cruise numbers are way different than I thought they would be and my sweet spot has saved me probably 3-6 gph when cruising