ACR ResQLink 400 – 406 MHz GPS Personal Locator Beacon with Multi-Terrain Accessory Clips
The ACR ResQLink 400 (model 2921) is a buoyant 406 MHz Personal Locator Beacon pre-programmed for U.S. registration, carrying Cospas-Sarsat and FCC approvals. It transmits three integrated distress signals and is carried by individual mariners, kayakers, and offshore crew as a manual emergency device requiring no subscription.
Technical Specifications
| Transmit Frequencies | 406 MHz (primary) / 121.5 MHz (homing) |
|---|---|
| GNSS Receiver | Multi-constellation: GPS and Galileo |
| RF Output Power | 5 watts |
| Operational Life | 24+ hours (based on accredited laboratory test report) |
| Battery | Non-hazmat Lithium (LiMnO₂); 5-year shelf life; replace after 5 years or after emergency use |
| Operating Temperature | -4°F to +131°F (-20°C to +55°C) |
| Storage Temperature | -22°F to +158°F (-30°C to +70°C) |
| Waterproof Rating | 16.40 ft (5 m) @ 1 hr.; 33 ft (10 m) @ 10 min. |
| Dimensions | 4.52 x 2.03 x 1.49 in (11.48 x 5.16 x 3.78 cm) |
| Weight | 0.33 lbs (148 g) |
| Approvals | Cospas-Sarsat, FCC |
| Country of Origin | USA |
| Warranty | 5 years |
Compatibility & Applications
- Fits recreational and offshore vessels where a personal, manually activated distress beacon is required.
- Mounts to lifejackets, PFDs, and gear via the included multi-terrain multifunction clip system.
- Pairs with the MEOSAR (Medium Earth Orbit Search and Rescue) satellite network for global coverage including polar regions.
- Guides rescuers to within 100 meters or less of the user’s position upon activation via GPS fix.
- Complies with USCG Office of Boat Forces salient characteristics for PLBs per ACR P/N 2921.
- Wires to no external power source — self-contained internal lithium battery, no vessel DC bus connection required.
The unit includes built-in buoyancy, floating if dropped overboard, and a dual visible-and-infrared LED strobe for day and night-time search operations. Self-test capacity is rated to 60 self-tests and 20 GPS self-tests over the 5-year battery life, verifiable via ACR’s 406Link.com satellite test platform — a capability absent from non-MEOSAR-compatible beacons.
