Garmin GPSMAP 451s with Internal Antenna Preloaded UK/Ireland

Garmin GPSMAP 451s with Internal Antenna Preloaded UK/Ireland

Availability: DISCONTINUED
Product Code: 010-00767-03


EGNOS enabled for greater accuracy BlueChart® Marine compatible


  • Display Type: 256+ colour QVGA, sunlight-readable
  • Screen Size: 4.0" diag. (102 mm)
  • Resolution: 240 x 320 pixels
  • Cartography: Enhanced worldwide satellite imagery basemap
  • Preloaded with UK & Ireland marine cartography
  • Single SD memory card slot for optional BlueChart G2 VISION cards
  • NMEA 2000-compatible
  • Water resistant to IEC 60529 IPX7 standards

Product Screen Shots


Package Includes

  • GPSMAP 451s
  • Tilt/swivel mount
  • Protective front cover
  • Power/data cable
  • Documentation

Additional Map Data

Optional BlueChart® G2 VISION cards provide:
- High-resolution satellite images and aerial photographs
- 3D charting information for a MarinerEye view and FishEye view
- Auto guidance technology suggests the best course to a destination

Add Sonar

The GPSMAP 451s is a sounder enabled device which means you have the option of connecting a powerful dual frequency or dual beam transducer that clearly paints depth contours, fish targets and structure whether you're fishing in seawater or freshwater lakes.

Sounder features on GPSMAP 451s:

  • Maximum Depth: 1500 ft. (dual freq.); 900 ft. (dual beam)
  • Transmit power: 400W (RMS) dual beam; 500W (RMS) dual freq.
  • Features: UltraScroll® A-scope, round flasher modes; auto gain with Dynacolor®; CANet® bus; See-Thru® technology

For ease of installation we recommend transom mount transducers.  While a dual frequency transducer is suitable for both seawater and freshwater use, if you intend to use your sounder mostly on freshwater lakes, a single frequency dual beam transducer is more suitable because one of the beams has a wide beam angle which covers a greater volume of water and is especially useful in shallows.

Dual Frequency - 200/50kHz, 15/45°, plastic, transom mount, depth, temp.
Product code: 010-10272-00.  Cost: €76.00 incl. VAT.

Dual Beam: - 200kHz, 20°, plastic, transom/trolling motor mount, depth, temp.
Product code: 010-10249-00.  Cost: €65.00 incl. VAT.

To order a transom mount transducer and any other accessories for your GPSMAP 451s please call us on 01-293 6987.

Technical Details

Physical & Performance:

Unit dimensions, WxHxD: 5.7" x 5.0" x 2.7" (14.5 x 12.7 x 6.9 cm)
Display size, WxH: 2.4" x 3.2", 4.0" diagonal (6.1 x 8.1 cm, 10.2 cm diagonal)
Display resolution, WxH: 240 x 320 pixels
Display type: QVGA display
Weight: 1.3 lb (590 g)
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

Features & Benefits:

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 freq: 50/200 kHz
Transmit power: 500W RMS
Voltage range: 10-32 Vdc
Maximum depth: 1500 ft