Mark-4 HDI 50/200 - 455/800FishFinder/ChartplotterThe easy-to-use 4.3 fishfinder/chartplotter w/ Hybrid Dual Imaging¿¢that combines Broadband Sounder¿¢ with DownScan Imaging¿¢technology, a super-bright, LED-backlit grayscale display, built-in GPS antenna and high-definition mapping.Key Features:

• Lowrance-exclusive, brilliant, high-resolution, 4.3, LED-backlitgrayscale display
  
• Exclusive Hybrid Dual Imaging¿¢ (HDI) - Broadband Sounder plusDownScan Imaging¿¢ -- the power of two award-winning technologiescombined to provide the best possible view beneath your boat
  
• Highly accurate, built-in GPS antenna plus a detailed U.S. map featuringmore than 3,000 lakes and rivers and coastal contours to 1,000
  
• Optional chart upgrades include Lake Insight¿¢ and NauticInsight¿¢ PRO and HD, Navionics® Gold and HotMaps® Premium,Fishing Hotspots® PRO
  
• Create your own map from real sonar data that you record with InsightGenesis¿¢
  
• DownScan Overlay¿¢ technology overlays DownScan Imaging ontoBroadband Sounder
  
• Advanced Signal Processing (ASP) reduces the need to manually adjustsettings to see fish, structure and bottom detail more clearly
  
• TrackBack¿¢ to review recorded sonar history including structure,transitions or fish targets, then pinpoint locations with a waypoint
  
• Easy-to-use page selector menu with quick access to all features usingone-thumb operation
  
• Multi-Window Display lets you quickly and easily choose from pre-setpage layouts -- including a three-panel view with chart, Broadband Sounderand DownScan Imaging
  
• NMEA Output: NMEA 0183
  
• Supported by Lowrance Advantage Service program
  

Specifications: Overview

• Display Size: 4.3/10.92cm
  
• Resolution: 480 x 272
  
• Backlighting: 11-Level LED
  
• Power Output: RMS (PTP): Max 250W RMS, 30,000W Peak to Peak (analogequivalent)
  
• Languages: 30
  
• HDI Operating Frequencies: 50/200 kHz + 455/800 kHz
  
• Operating Voltage: 12VDC (10-17VDC min-max)
  
• Media Port: One (1) high-capacity microSD slot
  
• Warranty: One year
  

Sonar

• Depth Alarm: Yes
  
• Sonar Frequencies: 50/200 kHz + 455/800 kHz
  
• Shallow Alarm: Yes
  
• Temperature Readings: Yes
  
• Transducer Type: Multiple selections Lowrance and Airmar®
  
• Max Depth Per Transducer Type
  
• DownScan Imaging¿¢: Max 300 / 91M @ 455/800 KHz
  
• Broadband Sounder¿¢: Max 2000 / 610M @ 50/200 kHz
  

Technical/Environmental

• Waterproof Standard/Rating: IPx7
  
• Product Width: 3.8\ 96mm
  
• Product Depth: 2.2 \ 56mm
  
• Product Height: 6.6 \ 168mm (7.5 \ 189mm w/bracket)
  

Power

• Power Supply (Supply Voltage): 12 VDC (10-17 VDC min-max)
  

GPS Navigation

• Navigation: Routes: 100
  
• Navigation: Waypoint Storage: 3,000
  
• GPS Antenna Type: Internal high-sensitivity WAAS + EGNOS + MSAS(optional external antenna)
  
• Plot Trails: Up to 100 trails - up to 10,000 points / trail
  
• GPS Alarms: Yes
  
• Background Mapping: US Background map with over 3,000 enhanced lake mapswith depth contour and shoreline detail, plus coastal depthcontours/shoreline detail and spot depth soundings to 1,000/305M
  
• Mapping Options: Lake Insight¿¢ and Nautic Insight¿¢ PRO and HD,Navionics® Gold and HotMaps® Premium, Fishing Hotspots®PRO
  

Package Includes:

• Lowrance Mark-4 HDI Chartplotter/Fishfinder
  
• 50/200 455/800 Transom Mount Transducer