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Icom M504 21

25 Watt VHF Fixed-Mount Waterproof Radio w/ Class D DSC (Black)

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The product on this page is discontinued.

Specials with this product

  • Free Ground Shipping to the 48 statesdetails
  • VHF Waterproof Marine Radio
  • IPX8 Submersible PLUS allows for 1.5m depth for 30 minutes
  • Large LCD with dot-matrix characters
  • ITU Class D DSC
  • Position Request and Position Report
  • Superior receiver performance
  • Excellent audio output power
  • 25W hailer/RX speaker and auto foghorn
  • Dual/tri-watch function for monitoring Ch.16 and/or call channel
  • Instant access to Ch. 16 and call channel
  • 7 levels adjustable backlit display and keypad
  • Convenient “TAG” scanning function with simple add/delete
  • Optional Voice Scrambler, UT-112 for private communication
  • Weather channels with weather alert function
  • Compatible with the optional and fully integrated Icom HM162SW
  • Color: Black
  • Also available in: Grey
  • Dimensions: 4-7/8"L x 6-1/2"W x 4-3/8"H
  • 1-year Manufacturer's warranty
Radio Features
Scanner DesignBase/Mobile
Trunking SystemN/A
Scanner TypeMarine
Channel Memory (Radio Scanners)N/A
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration3 years
Labor Warranty Duration3 years
Warranty ProviderManufacturer
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Product Summary

Manufacturer: Icom
Model number: M504 21
Weight: 5.25 lbs
Internal SKU: m50421
Internal product ID: 34602

Why Sonic Electronix?

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Customer Testimonial

I just want to congratulate Sonic Electronix for the amazing customer service that it provides. It is a serious company with reliable service that should be put as an example for other companies. Thank you Sonic Electronix, you will be refereed to all my friends.

- Elenka from san diego

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