New Humminbird Fishfinder 581i Combo w/Internal Antenna
by Humminbird
Date first available at Amazon.com: July 27, 2011
Buy new:
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Review & Description
5" mono FSTN LCD. 640V x 320H. 16 Level Grayscale. Temp Included. GPS Speed Included. Dual Beam. 83 kHz/60 degrees & 200 kHz/20 degrees. 250 Watts RMS. 2000 Watts PTP. 50 Channel GPS. UniMap Built-in. Navionics Compatible.
Product Details
- Amazon Sales Rank: #8496 in Consumer Electronics
- Brand: Humminbird
Features
- 581i Combo w/Internal Antenna.
- 407330-1.
- The 581i Combo features an ultra-high resolution, 16 level grayscale 640V x 320H 5" display, DualBeam sonar with 2000 Watts PTP power output, and GPS Chartplotting with built-in UniMap.
- Features: Front mounted internal GPS allows in-dash mounting.
- Single Front Side SD card slot.
