Humminbird® 581i HD DI GPS/Fishfinder Combo
Sale starting at:
Clearance starting at:
- 5", 16-level grayscale LCD display
- Down Imaging® DualBeam PLUS™ Sonar
- Sonar coverage: 16, 28, 45, & 75 degrees
- GPS Speed and Temperature included
- Power output: 4000 watts (PTP) and 500 watts (RMS)
- Down Imaging depth capability: 350'
- DualBeam depth: 600'
- Size: 7.25"W x 7"H x 4"D
- Tilt & Swivel Quick Disconnect mount
The Humminbird 581i High Def Down Imaging GPS/Fishfinder Combo features Humminbird's remarkable HD screen resolution, incredibly clear Down Imaging, plus dynamic SwitchFire™ Sonar. The Humminbird 581i includes a 5", 640V x 320H Color, 16-level Grayscale, backlit, LCD display and Quick Disconnect mount. The standard transducer is XNT-9-DI-T with a standard transom mount. The built-in UniMap™ helps you find your way. GPS features include trackplotting and chartplotting, thanks to an internal GPS receiver. Utilize up to 2,500 waypoints, 50 routes, plus 50 tracks/20,000 points. DualBeam PLUS depth: 600'. Numerous user features include upgradable internal software, split screen zoom, 3D chart view, and much, much more.
Manufacturer model #: 408990-1.
Rated 3.7 out of 5 by 11
Rated 4 out of 5 by philthenet2 Great Value
For the price, this unit packs in a lot of features. I agree with one other review that stated sallow water the screen is very busy but you can make out bottom. Anything more than 15' is good. GPS is well worth the 300 dollars. I again agree why would they not put a paper manual with this unit but once you get used to it you will be happy with it.
January 27, 2014
Rated 3 out of 5 by DTIDE Hard to learn how to use
Why In the world Humminbird cant put a paper back manuel with this product. I dont have a laptop to take to lake to learn how to use this thing.
June 24, 2013
Rated 4 out of 5 by BigTwig Nice Finder
I picked this up a few weeks and so far can't complain. The side imaging feature took a bit of playing with to finally getting working to what I think is appropriate. I think the major problem is I primarily fish in shallow water (6-7 feet) which didnt seem to scan properly. Deeper water around 12 to 20 looks great, wish I could see something other than just the bottom. My cheaper unit on the bow seems to pick up all kinds of fish which this unit doesn't, but neither does my hook. Granted everyone has a computer, but I like paper. Wish the unit would come with a paper manual rather than a cd. I typically don't take my laptop out on the boat fishing. Having the book would be nice to figure out all the features. The menus are pretty straight forward and you shouldn't have any issues. I was concerned about the display in direct sunlight but I see it just fine. Overall a great unit and the gps works great. The maps built in are very basic but even the smallest ponds I fish are on there.
May 3, 2013
Rated 4 out of 5 by skmilli901 Gr8 item for the money
Easy hook up and lots of features to learn and discover
April 19, 2013
Need Help? 7 days a week: 7am to 10pm CT or call 1.800.227.7776 anytime