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  (26 customer reviews). Email:
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96% of our reviewers recommend this item. See more Garmin items. |
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| List Price: |
$449.99 |
| Our Price: |
$209.95* |
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* after $200.00USD rebate. $409.95 before rebate. |
| You Save: |
$240.04 (53%) after rebate |
Availability: |
In Stock.
Ships tomorrow, May 21. |
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| Model: |
Garmin GPSMAP 421s Sounder with Dual Frequency Transducer |
| Part No: |
010-00764-01 |
| Condition: |
Brand New, Full Manufacturer Warranty |
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| Price Match: |
Get a Quick Price Match for this item (during business hours). |
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Tutorial Videos |
| We have 18 videos for this item. We handcraft videos daily to help you learn more about the functionality of the items we sell. View a list of the GPS City videos. Visit our Youtube channel. Suggest a video via our feedback form. |
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Questions and Answers (Q&As) |
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Popular Accessories
Here are the top accessories for this item. View the complete accessory list for this item. |
Garmin microSD Card BlueChart g2 HXUS039R
$119.95
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What's Included In The Box? |
| The Garmin GPSMAP 421s Sounder with Dual Frequency Transducer ships with the following items included: |
Product Information |
| Manufacturer: |
Garmin |
Category: |
GPS Units |
Type: |
Marine GPS |
| Model: |
010-00764-01 |
SKU: |
421SDUAL |
UPC: |
753759095871 |
| Announced: |
July 9, 2009 |
First Shipped: |
August 11, 2009 |
Weight: |
6.000 lbs. |
Gallery of Customer Images |
| Customer submitted images of the Garmin GPSMAP 421s Sounder with Dual Frequency Transducer in action. You can also view our entire gallery or add your own gallery item. Special limited time offer - get a free t-shirt with every approved submission with pictures. |
| » Garmin 421s in Flush Mount Kit |
 |  | | by Tim Rowsell on May 6, 2013 2,741 views
This is a new Garmin 421s installed using the Garmin flush mount kit. Install was easy any the final look is perfect! … (view more) |
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| » Honeymooning |
 |  | | by Chris K. on August 29, 2012 15,859 views
As part of preparation to travel a large portion of Ontario's Trent-Severn Waterway as our honeymoon trip, I ordered a Garmin GPSMap 421S with the Canadian BlueChart G2 charts. Being unfamiliar with the area, this chartplotter was worth every penny. Over seven … (view more) |
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| » Testing New Sounder |
 |  | | by scott on June 13, 2010 20,629 views
Went out on the Douglas Channel and then out to Work Channel to try the sonar and chart plotting. Found that it is easy to use and easy to install. I used my Garmin hand help gps to compare the speed and it … (view more) |
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Customer Reviews |
| View all reviews. Or click here to Add Your Own Review. It's quick and easy. No login required. |
96% of our reviewers recommend this item.
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| | Most recent customer reviews. (View all 26 reviews for this item.) |
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Written by shawn vancouver bc March 14, 2013
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GARMIN very happy with product and fast service … More
•Recommend? YES 14 viewers found this helpful. |
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Written by Barrie Thunder Bay ON February 2, 2013
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not installed in boat yet but did check out gps operation and inland lakes ontario map. works just fine.will have to … More
•Recommend? YES 11 viewers found this helpful. |
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Written by Hz Gulf Islands, BC January 27, 2013
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GOOD ACCURACY WITH THE G2 VISION Used it with my new 16 bowrider last summer in the waters of the Gulf Islands, British Columbia. Crucial tool to avoid … More
•Pros: good maps (g2 vision) •Cons: screen should be twice the size •Recommend? YES 13 viewers found this helpful. |
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Written by Steve Laval November 12, 2012
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NAVIGATION RASSURANTE Il est facile à installer, à utiliser (5 minutes et je naviguais!). L'écran est clair à la lumière du jour, elle est … More
•Recommend? YES 24 viewers found this helpful. |
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Written by Anon Gatineau November 12, 2012
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TROUBLE FREE NAVIGATION This GPS is easy to install, easy to use (2minutes setup) and ready to go! I use a blue chart witch is perfect ans ea … More
•Recommend? YES 25 viewers found this helpful. |
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Manufacturer Description |
The Garmin GPSMAP 421 is a compact chartplotter that features an ultra-bright 4” 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 worldwide basemap and an easy-to-use interface designed to help you navigate the open waters with ease. The Garmin GPSMAP 421 also accepts BlueChart® g2 Vision cards for added features and functionality such as high-resolution satellite imagery, 3D views and Auto Guidance technology.
View Satellite-enhanced Worldwide Basemap
The Garmin GPSMAP 421 basemap contains worldwide satellite images in place of traditional maps. The Garmin GPSMAP 421 also comes standard with a high-sensitivity GPS receiver for superior satellite tracking and quicker acquisition times. In addition, the Garmin GPSMAP 421 can receive U.S. graphical weather data via optional GXM 51 satellite receiver/antenna. And with an SD card slot, it’s easy to add additional maps without connecting to a computer.
Add Sonar
Where applicable, the sounder version, the Garmin GPSMAP 421s comes with a powerful dual-frequency transducer that clearly illustrates depth contours, fish targets and structures whether you’re fishing in freshwater or off the coast. The Garmin GPSMAP 421 and Garmin GPSMAP 421s are also NMEA 2000-certified for easy connectivity with sensors, instruments and future marine offerings.
Add Extras with BlueChart g2 Vision
With the optional BlueChart g2 Vision SD card, you can add a whole new dimension of exceptional features to your chartplotter.
- 3D Mariner’s and Fish Eye view provides you with a 3-dimensional perspective of map information, both above and below the waterline
- High-resolution satellite images and aerial photographs 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
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Features and Tips |
Here is a listing we have put together of some of the common GPSMAP 421s Sounder with Dual Frequency Transducer features,
along with a few user tips that you may find of help for this particular item. |
- Garmin radar compatible: no
- Garmin sonar compatible: yes
- CANet® compatible: no
- Garmin Marine Network™ compatible: no
- Touchscreen: 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
- Hunt/fish calendar: no
- Sun and moon information: yes
- 3-D map view: yes (with optional BlueChart g2 Vision card)
- Auto Guidance: yes (with optional BlueChart g2 Vision card)
- Automatic routing (turn by turn routing on roads): no
- XM WX Weather & Radio for U.S. compatible: yes
- Voice prompts (e.g. "Turn right in 500 ft."): no
- Speaks street names (e.g. "Turn right ON ELM STREET in 500 ft."): no
- Remote control: no
- Headphone jack/audio line-out: no
- Audio/video input/output: no
- Portable: no
- Automotive/motorcycle-friendly: no
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)
- Battery: none
- Battery life: none
- Waterproof: yes (IPX7)
- High-sensitivity receiver: yes
- Antenna: internal
- NMEA input/output: NMEA 0183 compatible and NMEA 2000 certified
Maps & Memory:
- Basemap: yes
Preloaded maps: no
- Ability to add maps: yes
- Built-in memory: none (cannot load maps to internal memory)
- Accepts data cards: SD™ card slot
- Waypoints/favorites/locations: 3,000
- Routes: 100
- Track log: 10,000 points; 50 saved tracks
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Specifications |
| General |
| 1. |
Unit dimensions, WxHxD: |
5.7in x 5.0in x 2.7in (14.5 x 12.7 x 6.9 cm) |
| 2. |
Display size, WxH: |
2.4in x 3.2in, 4.0in diagonal (6.1 x 8.1 cm, 10.2 cm diagonal) |
| 3. |
Display resolution, WxH: |
240 x 320 pixels |
| 4. |
Display type: |
QVGA display |
| 5. |
Weight: |
1.3 lb (590 g) |
| 6. |
Battery: |
none |
| 7. |
Battery life: |
none |
| 8. |
Waterproof: |
Yes (IPX7) |
| 9. |
GPS-enabled: |
Yes |
| 10. |
Floats: |
No |
| 11. |
High-sensitivity receiver: |
Yes |
| 12. |
PC interface: |
None |
| 13. |
RoHS version available: |
No |
| 14. |
Preloaded maps: |
No |
| 15. |
Ability to add maps: |
Yes |
| 16. |
Street Map Compatible: |
No |
| 17. |
Topographic Map Compatible: |
Yes (limited) |
| 18. |
Marine Software Compatible: |
Yes |
| 19. |
Bluechart g2 Map Compatible: |
Yes |
| 20. |
Bluechart g2 Vision Map Compatible: |
Yes |
| 21. |
Accepts data cards: |
SD data card |
| 22. |
Waypoints/favorites/locations: |
3000 |
| 23. |
Additional: |
N/A |
| 24. |
Garmin Connect™ compatible (online community where you analyze, categorize and share data): |
No |
| 25. |
Widescreen |
No |
| Automotive |
| 26. |
Routes: |
100 |
| 27. |
Basemap: |
Yes |
| 28. |
Voice prompts (e.g. "Turn right in 500 ft."): |
No |
| 29. |
Speaks street names (e.g. "Turn right ON ELM STREET in 500 ft.") : |
No |
| 30. |
Automatic routing (turn by turn routing on roads): |
No |
| 31. |
Qwerty or ABC keyboard (choose keyboard layout): |
No |
| 32. |
Antenna Type: |
Internal |
| 33. |
External Antenna Jack: |
BNC |
| 34. |
Remote control: |
No |
| 35. |
FM transmitter: |
No |
| 36. |
Headphone jack/audio line-out: |
No |
| 37. |
Audio/video input/output: |
No |
| 38. |
Dead reckoning: |
No |
| 39. |
Garmin Lock™ (anti-theft feature): |
No |
| 40. |
Automotive-friendly: |
No |
| 41. |
Motorcycle-friendly: |
No |
| Outdoor |
| 42. |
Track log: |
10,000 points; 50 saved tracks |
| 43. |
Hunt/fish calendar: |
No |
| 44. |
Sun and moon information: |
No |
| 45. |
Tide tables: |
Yes |
| Marine |
| 46. |
Portable |
No |
| 47. |
Marine Auto Guidance |
Yes |
| 48. |
Radar compatible |
No |
| 49. |
Sonar compatible |
Yes |
| 50. |
CANet® compatible |
No |
| 51. |
Marine Network™ compatible |
No |
| 52. |
Supports AIS (tracks target ships' position) |
Yes |
| 53. |
Supports DSC (displays position data from DSC capable VHF radio) |
Yes |
| 54. |
Audible alarms |
Yes |
| 55. |
XM WX Weather & Radio for U.S. compatible |
Yes |
| 56. |
NMEA input/output |
Yes (NMEA 2000/0183) |
| 57. |
Dual-beam sonar capable |
Yes |
| 58. |
Dual-frequency sonar capable |
Yes |
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| Customer Comments |
| (View more comments.) |
Excellent delivery times for all that I have ordered from you. Keep up the good work. Pass to the boys outback
S, May 17/13
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Best price I found on the net - and free shipping make this a real deal!
Dov F. NY, May 14/13
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Easy site to search,setup acct and order
Ken D. NY, May 13/13
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Very informative and easy to order
Normand M. ON, May 13/13
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Great Prices !!! thank you !
Maher Q. MN, May 10/13
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Very impressed with the prompt shipping and packaging of the item. Will order again from GPS City again
larry, May 8/13
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