Humminbird 728x:

Featuring an all new head design with three programmable ?soft touch buttons? designed to switch effortlessly between your favourite views and settings. Ultra high resolution, large screen DualBeam PLUS? fishing systems packed to the gills with practical technology.

? Three programmable ?soft touch? favourites buttons
? 127mm (5?) diagonal display
? 640V x 320H FSTN, 16 level Grayscale, high resolution monochrome display
? DualBeam PLUS? sonar 20?/200kHz and 60?/83kHz penetrating up to 457m in depth
? 4000 watts peak to peak (500 watts RMS) power output
? Selectable bottom view ? choose Whiteline?, Inverse, Bottom Black or traditional Structure ID?
? Triplog with distance, elapsed time and average speed (optional sensor or GPS receiver required)
? PC compatible ? download new features as they become available via PC cable
? Selectable 2x, 4x, 6x and 8x zoom levels
? Large digits view option for easy to read number display
? Depth alarm, fish alarm and battery voltage monitor with alarm
? Feature memory retains unit settings
? Quick disconnect as standard or optional in-dash mounting
? Split screen zoom and Selective FishID+?
? GPS, SmartCast?, WeatherSense?, CannonLink? and InterLink? ready
? Water temperature included, speed capable with optional sensor or GPS receiver
? Optional QuadBeam?/WideSide? transducer

Specifications:
Depth Capacity: 457m depth
Display Size: 127MM (5?)
Display Matrix: 640V x 320H
Display Type: 16 Level Mono FSTN
Accessory: Temp Incl.
Transducer: Dual Beam PLUS
Operating Frequency: 200 & 83kHz
Sonar Coverage: 20? & 60? @-10db
Power Output: 500 Watts RMS / 4000 Watts PTP
Feature: 3 x soft-key presets
Options: GPS, In-dash mounting