Description
The ACR Electronics 4587 SR303 Marine GMDSS VHF Radio Full Kit is built with ultimate flexibility in mind, offering users convenient options to facilitate communication at sea regardless of the circumstances. Fully certified to meet rigorous international IMO and SOLAS regulations, this waterproof GMDSS (Global Maritime Distress and Safety System) radio provides essential communication support during both critical emergency situations and everyday routine maritime operations.
This comprehensive Full Kit configuration (Model 4587) serves as an all-encompassing solution for general-purpose everyday use and emergency backup applications. The kit includes a primary Lithium emergency battery featuring a clear witness label, ensuring there is never any question as to whether the battery has been previously used. Once the witness label is removed and the battery is connected, the radio automatically powers on and enters GMDSS mode with optimized preset settings: Channel 16, volume level 8, and squelch set to 2. To support daily routine operations, the full kit also includes a rechargeable Lithium-ion battery pack and a desktop charging base.
Built with ease of use as a design priority, the SR303 features large, tactical buttons suitable for operation while wearing heavy survival suit gloves. Keypad and display backlighting ensures effortless readability in low-light environments, while integrated NFC (Near Field Communication) allows users to instantly access battery replacement dates and product information via a mobile device. Backed by ACR Electronics’ legacy of marine safety innovation, the durable SR303 is an ideal choice for both mandatory and voluntary vessel carriage.
Key Features & Included Accessories:
- Comprehensive Full Kit (Model 4587): Includes the SR303 radio body, primary Lithium emergency battery, Lithium-ion rechargeable battery, and a desktop charging base.
- Automated GMDSS Activation: Emergency battery connection triggers an automatic power-on sequence locked directly to Channel 16.
- NFC Enabled: Built-in Near Field Communication allows you to scan the radio with a smartphone to quickly check battery expiration dates and product details.
- Low-Light Visibility: Equipped with a clear digital display and an fully backlit keypad for night or heavy storm operations.
- Standard Accessories Included: Outfitted with a flexible rubber antenna, heavy-duty belt clip, and a secure wrist lanyard.
Technical Specifications:
| Dimensions | 63 mm W x 150 mm H x 33 mm D (2.48″ x 5.91″ x 1.30″) |
| Weight | 300 g (0.66 lbs) |
| Waterproof Rating | IPX7 Waterproof Protection |
| Operating Temperature Range | -20°C to +55°C (-4°F to 131°F) |
| Storage Temperature Range | -30°C to +65°C (-22°F to 149°F) |
| Included Battery Types | (1) Rechargeable Lithium-Ion & (1) Primary Lithium (Emergency) |
| Battery Watt-Hours / Lithium Content | 100 Wh per battery / 2g per battery |
| Primary Battery Replacement Interval | 5 Years |






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