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Q&A · Survival

Do I Need An EPIRB If I Already Have A PLB?

April 5, 2026

Quick Answer

If you already have a PLB, an EPIRB is not strictly necessary unless you're sailing or boating in areas with no cellular coverage, such as the open ocean, or if you're traveling in remote regions with no land-based rescue services. However, consider the added benefits of an EPIRB's greater visibility and automatic homing capabilities.

Considering the Alternatives

When deciding between a PLB and an EPIRB, consider the environment and your specific situation. A PLB is sufficient for most land-based and coastal activities, but an EPIRB can provide added security in areas with no cellular coverage, such as the open ocean or remote wilderness areas.

Technical Differences

While both devices send distress signals, an EPIRB (Emergency Position-Indicating Radio Beacon) is specifically designed for maritime and aviation use. It’s typically easier to activate and can provide location information to rescue teams via satellite, whereas a PLB (Personal Locator Beacon) is designed for individuals in the wilderness or on land. Key differences include:

  • Activation: EPIRBs often have an automatic activation feature, whereas PLBs require manual activation.
  • Location Information: EPIRBs typically provide more detailed location information, such as latitude and longitude, whereas PLBs may only indicate a general area.
  • Power Source: EPIRBs often have a longer battery life, up to 48 hours, while PLBs may last up to 24 hours.

Situational Use Cases

Consider the following scenarios to determine whether an EPIRB is necessary:

  • Sailing or boating in areas with no cellular coverage, such as the open ocean.
  • Traveling in remote regions with no land-based rescue services.
  • Operating in areas with limited access to emergency services, such as the Arctic or Antarctic.
  • Participating in high-risk activities, such as extreme snowmobiling or heliskiing.

In these situations, the added benefits of an EPIRB’s greater visibility and automatic homing capabilities make it a valuable asset. However, if you’re engaging in lower-risk activities on land or in coastal areas, a PLB may be sufficient.

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