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Garmin GPSMAP 531S Chartplotter/Fishfinder



The GPSMAP 531s is a compact chartplotter that features an ultra-bright 5" QVGA color display along with an improved high-speed digital design for increased map drawing and panning speeds. It's ready to go with a built-in, satellite-enhanced basemap preloaded with U.S. Inland Lakes and an easy-to-use interface designed to help you navigate the open waters with ease. The GPSMAP 531s also accepts BlueChart® g2 Vision® cards for added features and functionality such as high-resolution satellite imagery, 3-D views and Auto Guidance technology.

Navigate the Lake

The GPSMAP 531s comes ready to go with preloaded U.S. Inland Lake map data. For areas outside the U.S., the GPSMAP 531s has a worldwide basemap with satellite images in place of more traditional maps. The GPSMAP 531s also comes standard with a high-sensitivity GPS receiver for superior satellite tracking and quicker acquisition times. And with an SD™ card slot, it's easy to add additional maps without connecting to a computer.

Get Sonar

The GPSMAP 531s comes with a powerful dual-beam transducer that clearly illustrates depth contours, fish targets and structures whether you're fishing in freshwater or off the coast. The GPSMAP 531s also is NMEA 0183-certified for easy connectivity with sensors, instruments and future marine offerings.

Add Extras with Inland Lakes Vision

With the optional Inland Lakes Vision SD card, you can add a whole new dimension of exceptional features to your chartplotter.

  • MarinerEye view and FishEye view provide you a 3-D perspective of map information, both above and below the waterline.
  • High-resolution satellite images to help you orient yourself in unfamiliar areas.
  • Auto Guidance technology searches through all relevant charts to create a route you can actually follow — one that avoids obstacles, shallow water, buoys and other obstructions.

Physical & Performance:

Unit dimensions, WxHxD: 5.9" x 6.4" x 2.9" (15.0 x 16.3 x 7.4 cm)
Display size, WxH: 3.0" x 4.0", 5.0" diagonal (7.6 x 10.2 cm, 12.7 cm diagonal)
Display resolution, WxH: 234 x 320 pixels
Display type: QVGA display
Weight: less than 1.75 lb (0.8 kg)
Waterproof: yes (IPX7)

Maps & Memory:

Basemap: yes
Preloaded street maps: no
Ability to add maps: yes
Accepts data cards: SD™ card slot
Waypoints/favorites/locations: 3,000
Routes: 100


CANet® compatible: no
Supports AIS (tracks target ships' position): yes
Supports DSC (displays position data from DSC capable VHF radio): yes
Audible alarms: yes
Tide tables: yes
Sun and moon information: yes
3-D map view: yes (with optional BlueChart g2 maps)
Dual-frequency sonar capable: yes
Dual-beam sonar capable : yes
Split-screen zoom: yes
Split-screen sonar/gps: yes
Ultrascroll® (displays fish targets at higher boat speeds): yes
See-thru® technology (exposes fish hidden in cover): yes
Fish Symbol ID (helps identify fish targets): yes
AutoGain Technology (minimizes clutter, maximizes targets): yes
Whiteline (indicates hard or soft bottom): yes
Adjustable depth line (measures depth of underwater objects): yes
A-scope (real time display of fish passing through transducer beam): yes
Bottom lock (shows return from the bottom up): yes
Water temperature log and graph: yes
Water temperature sensor included: yes


Frequency: dual beam: 80/200 kHz
Transmit power: 400 W RMS
Voltage range: 10-32 Vdc
Maximum depth: 900 ft

What's in the Box:

  • GPSMAP 531s
  • Tilt/swivel mount
  • Protective front cover
  • Power/data cable
  • Documentation
  • Dual beam transducer

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