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ACR ResQLink 400 Personal Locator Beacon w/o Display (2921)


10% of profits donated to Sierra Club and 1% of all sales donated to Stripe Climate Change initiative.

Professionally engineered and tested to ensure it can withstand even the harshest elements, ACR ResQLink 400 Personal Locator Beacon (2921) requires no subscription for use. Designed for a wide variety of environments, the ResQLink’s satellite precision and military durability puts rescue in the palm of your hands.

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Professionally engineered and tested to ensure it can withstand even the harshest elements, ACR ResQLink 400 Personal Locator Beacon (2921) requires no subscription for use. Designed for a wide variety of environments, the ResQLink’s satellite precision and military durability puts rescue in the palm of your hands.

Small but resilient, the ACR ResQLink 400 Personal Locator Beacon (2921) has been professionally engineered and tested to ensure it can withstand even the harshest elements. This buoyant Personal Locator Beacon requires no subscription for use and can be utilized to enhance your safety in a wide variety of environments. Whether on land, at sea, or in the air, trust that the ResQLink’s satellite precision and military durability, puts rescue in the palm of your hands.

With three levels of integrated signal technology – GPS positioning, a powerful 406 MHz signal, and 121.5 MHz homing capability – the ACR ResQLink 400 Personal Locator Beacon (2921) quickly and accurately relays your position to a worldwide network of search and rescue satellites. Additionally, a built-in strobe and infrared strobe facilitate nighttime, or other low visibility, rescues.

Wherever your adventure takes you, whether it’s a trip to the highest mountain peaks, the most undiscovered terrain, or the vastest of oceans, rest assured that the ACR ResQLink 400 Personal Locator Beacon (2921) always activates easily. Simply deploy the antenna, press the on button, and the beacon will do the rest for you by effortlessly guiding rescuers to within 100 meters or less of your position.

Due to innovative design elements, multifunction clips can be used in conjunction with the beacon, providing numerous wearability options that address a variety of usage applications. The increased ease of incorporating the ACR ResQLink 400 Personal Locator Beacon (2921) on your person, or with your gear, just made all your adventures not just safer, but more convenient too.

As a leader in life-saving products for both professional and recreational use, ACR provides unparalleled safety and peace of mind with the ACR ResQLink 400 Personal Locator Beacon (2921).

ACR ResQLink 400 Personal Locator Beacon (2921) Features:

  • GPS/Galileo GNSS
  • Built-In Buoyancy
  • Strobe and Infrared Strobe
  • Global Coverage
  • MEOSAR Compatible
  • Small and lightweight
  • 5 year battery life
  • 24+ hours Operational Life**
  • Multifunction Clip System Included
  • No Subscription Required

ACR ResQLink 400 Personal Locator Beacon (2921) Press Release:

ACR Electronics is launching its next-generation ResQLink™ Personal Locator Beacons (PLB) – the latest evolution of the world’s best-selling PLB. Incorporating first-hand feedback from survivors who have activated the beacons in real-life emergencies, the new ResQLink 400 and ResQLink View PLBs introduce user-friendly design innovations and add enhanced functionality to provide a range of adventurers with a trusted and affordable link to rescue in a life-threatening situation.

Bringing the benefits of ACR’s unique digital display capabilities to ResQLink users for the first time, the ResQLink View with Optical Display Technology adds even more reassurance and peace of mind to outdoor enthusiasts. The screen displays all the beacon’s operational activities, including GPS coordinates, operating instructions, usage tips, transmission bursts, as well as battery power.

Compact, lightweight and easy to carry, the new ResQLink beacons feature a protected activation button located away from the test button, multiple wearable mounting options including a belt clip and oral inflation clip for easy access in an emergency, and an easier-to-release antenna enclosure. All the new design changes were suggested by members of the ACR Electronics SurvivorClub free beacon replacement program. The PLBs also include a new infra-red strobe light in addition to the ultra-bright strobe light to assist rescue crews using night vision goggles.

Made in the USA and approved by the FCC for sale in the country, the new Personal Locator Beacons offer the same exceptional power and operational reliability expected from ACR products. They operate on the three Cospas-Sarsat satellite systems including the new MEOSAR, ensuring they will offer the near instantaneous signal detection and transmission enabled by the global MEOSAR satellites and upgraded ground-station components. Using the next-gen network, anyone activating a ResQLink PLB can expect their beacon to be located within 100 meters (328 feet), 95% of the time, within 5 minutes of the distress signal. The new ResQLink series also incorporate a multi-constellation receiver utilizing both the Galileo Global Navigation Satellite System (GNSS) as well as the GPS Satellite network for faster location and improved accuracy.

Mikele D’Arcangelo, Vice President of Global Marketing and Product Management for ACR Electronics, said: “We are pleased to introduce the next generation of the ACR ResQLink PLBs to offer an affordable, yet technologically advanced, solution that will save more lives and aid the rescue services in locating and helping casualties. As the only company that incorporates a digital display in our beacons, we are now able to offer this technology at a significantly lower price in the ResQLink View to ensure it is an option for more of our customers who require an additional level of peace of mind. We are also very proud to say that we have listened to the members of our SurvivorClub – ACR beacon owners who have been involved in real rescues – and used their experiences to improve the design and functionality of our ResQLink PLBs.

“A Personal Locator Beacon is a vital part of any safety kit for boaters, hikers, climbers, hunters, snowmobilers and all outdoor enthusiasts. As safety and survival specialists, ACR Electronics has been at the forefront of beacon technology and we will continue to innovate and listen to feedback so that our customers can always rely on our devices in an emergency.”

Featuring built-in buoyancy, the ResQLink PLBs feature an operating life that exceeds 24 hours. Ideal for carrying in a pocket, backpack or attaching to a life jacket, the ResQLink View PLB weighs just 151g, while the non-display ResQLink 400 weighs 148g. Both measure 4.52 (L) x 2.03 (W) x 1.49 in (D).

ResQLink PLBs utilize three integrated signal technologies – GPS positioning (Galileo and GPS GNSS), a powerful 406 MHz signal, and 121.5 MHz homing capability – to quickly and accurately relay the user’s position to a worldwide network of search and rescue satellites at the push of a button.  The ResQLink series does not require any subscription but are required to be registered with the country’s national authority.  Optional subscriptions for testing are available via ACR’s patented technology.

ACR is also introducing the option of the new ResQLink Skins, another customer-led feature for people who want to personalize their PLB. Different styles, including a ‘camouflage’ version will be available for users to apply to their beacons while still meeting regulatory color requirements.

“Which one do I need, ACR Bivy or ACR Personal Locator Beacon?”

So you’re familiar with our Personal Locator Beacons, but you’ve seen this new Bivy product and find yourself now asking, “Which one do I need, Bivy or PLB?” Well the simple answer is: “That depends on what kind of adventurer you are.”

ACR Bivy and the award-winning ACR ResQLink 400 and ACR ResQLink 425 are designed for similar purposes, i.e., saving lives outdoors and providing enhanced confidence. However, they’re utilized much differently outdoors. A Personal Locator Beacon is designed to be a tool of last resort; a proven, life-saving emergency rescue and positioning device summoning search and rescue worldwide. Its one job is to continuously share your position with those who are coming to your aid. Bivy also has similar one-button SOS functionality. However, this is a communication and outdoor connectivity device as much as it is an emergency tool. In tandem with the Bivy app, Bivy allows you to send messages, track and share your position, check real-time weather forecasts, and even offers one-touch “check-in” functionality.

Given these differences, ResQLink PLB’s require no subscription, whereas the Bivy allows adventurers to choose a subscription plan to best fit their unique outdoor communication needs.   Once an emergency activation is initiated, a PLB leverages its battery capacity for the sole purpose of transmitting your position for a minimum of 24 hours while also firing the visible and infrared strobes. The Bivy in contrast allows those in need of rescue to also exchange messages with rescue personnel for an additional layer of coordination.

So, are you the adventurer who plans ahead in case rescue becomes necessary, but would otherwise prefer not to add outdoor communication to their itinerary? Then a PLB is all you need to stay safe out there. But if leveraging the power of a proven 2-way communication device adds to your remote outdoor experience, then ACR Bivy has the features you prefer.

The manufacturer does not allow this product to be returned to Nomadic Supply Company. You must contact the manufacturer directly with any issues.


ACR Artex

ACR Artex (ACR Electronics) is the leading development center for emergency beacons that are designed with one purpose: to save lives. ACR Artex designs & manufacture cutting edge rescue beacons & survival gear for boaters, pilots, hikers, climbers, and cyclists.
Weight 0.65 lbs
Dimensions 5 × 5 × 2 in
WarningWARNING: This product may 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