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SR303 Survival Radio VHF Multi-Channel GMDSS/FCC/MED with Replaceable Lithium Ion Battery

The ACR Electronics SR303 Marine GMDSS VHF Radio is built with flexibility in mind, offering users convenient options to facilitate communication at sea regardless of the circumstances. Designed as a GMDSS (Global Maritime Distress and Safety System) product, this waterproof VHF radio is fully certified to meet IMO and SOLAS regulations and seamlessly provides essential communication support in both critical situations and during everyday routine maritime operations. 

Offered in two convenient formats, as solely a GMDSS Emergency VHF for emergency use only applications or as a full kit for general-purpose everyday use and/or emergency use applications, the ACR Electronics SR303 radio serves as an all-encompassing solution for all your maritime communication needs. 

The GMDSS Emergency VHF comes with a primary Lithium battery, which includes a battery witness label so that there is never any question as to whether the primary battery has been used or not. Once the witness label is removed, the radio will auto power on when the battery is connected, and the unit will also automatically enter GMDSS operation mode with the following preset settings: channel 16, volume level 8, and squelch set to 2.

The full kit includes the primary Lithium battery as described and also comes with a Lithium-ion rechargeable battery, a charging base, and a mains to 12V supply plug. Standard accessories supplied with both the standalone GMDSS Emergency VHF option and the full kit option include a flexible rubber antenna, belt clip, and wrist lanyard.

Built with ease of use as a design priority, the SR303 is suitable for operation while wearing survival suit gloves and features an easy-to-read digital display. Both the display and keypad are backlit, making operation in low-light environments simple. The SR303 also includes NFC (Near Field Communication), allowing access to battery replacement date and product information on a mobile device.     

The durable design of the SR303 makes it suitable for all marine applications and an ideal choice for mandatory and voluntary carriage. With significant experience in marine safety technology and an ongoing commitment to quality and innovation, the ACR Electronics SR303 Marine GMDSS VHF Radio delivers the type of unparalleled performance that mariners worldwide have come to expect from all products produced by ACR Electronics.

Specifications:

  • Size: 63 (W) x 150 (H) x 33 (D) mm (2.48 x 5.91 x 1.30”)
  • Weight: < 300 g (< 0.66 lbs)
  • Waterproof: IPX7
  • Temperature Range (operating): -20°C to +55°C
  • Temperature Range (storage): -30°C to +65°C
  • Battery (type): Rechargeable Lithium Ion & Primary Lithium
  • Battery (Lithium Metal Weight / Wh): ≤ 2g per battery / ≤ 100 Wh per battery
  • Battery Replacement Interval: 5 years (primary battery)
  • Approvals: IEC61097-12, IEC60945, MED/5.17, UK MER/5.17, CFR 47 part 80, A.694(17), MSC.149(77), MSC 105/WP.7
  • Accessories (included): Flexible Rubber Antenna, Belt Clip, & Wrist Lanyard

WarningWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.

Specifications:

  • Battery Type: Lithium Ion
  • Bluetooth: No
  • Floats: No
  • Speaker Mic: No

Why Choose Green Vista Living


At Green Vista Living, we’re passionate about providing top-quality renewable energy and eco-friendly products that not only enhance your life but also help protect the planet. We’ve built our business with one mission in mind: to be the go-to destination for renewable energy solutions, outdoor gear, and off-grid supplies. When you shop with us, you’re not just getting innovative products—you’re joining a community that’s committed to sustainability.

We Put Our Customers First


As a small, dedicated team, we care deeply about your experience. Unlike large, faceless online companies, Green Vista Living offers a personal touch in everything we do. We're here for you from start to finish—whether you need product advice, support after a purchase, or just have questions. Our knowledgeable customer service team is always just a phone call or email away, ready to assist you in any way possible.

We Share Your Passion for the Planet


Our love for the outdoors and sustainable living runs deep. Most of our team hails from the mountains of Colorado, where renewable energy and the environment are part of daily life. So when you call Green Vista Living, you’ll speak directly with an expert who understands both the technical side of renewable products and the lifestyle they support. Whether you’re looking for solar generators, EV chargers, or any of our eco-friendly offerings, you can trust us to guide you with expertise and passion.

Trusted Industry Experts


Our close partnerships with the best brands in renewable energy and outdoor gear give us insider knowledge that you won’t find anywhere else. We’ve taken the time to carefully select products that stand out for their quality and reliability. At Green Vista Living, we believe in understanding our products inside and out so that we can help you make the right choice with confidence.

More Reasons to Love Green Vista Living


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At Green Vista Living, we aim to make your renewable energy and outdoor experience as seamless and enjoyable as possible. With our unmatched customer service, expertise, and dedication to quality, you can shop with confidence, knowing you’re supporting a company that’s as committed to the planet as you are.

Frequently Asked Questions

Yes! We provide free and fast shipping on MOST orders within the continental United States. However, some specific brands and items will require a quote. You can live chat or call us for a quote
Most orders ship out within 1–2 business days and arrive within 3–5 business days depending on your location.
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Yes. All products include any applicable manufacturer warranties, and we’ll help you handle any warranty claims if needed.
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Feedback From Our Customers

At Green Vista Living, we pride ourselves on delivering top-quality products and exceptional service to solar professionals and homeowners alike. Here's what our customers have to say about their experiences with us.

Kevin Leary
May 18, 2025
★★★★★

Incredible Tech Support from Anees of Green Vista Living. Exceptional service and went above and beyond on every question.

Bryan Cunningham
Off grid Kit • Dec 21, 2025
★★★★★

Shipment was slow due to high demand, but the team kept me informed and ensured everything arrived properly.

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