What is the main difference between Category 1 and Category 2 EPIRBs?

The distinction between Category 1 and Category 2 Emergency Position Indicating Radio Beacons (EPIRBs) is primarily based on how they are activated. Category 1 EPIRBs are designed to activate automatically when they are submerged in water, making them ideal for situations where the operator may be incapacitated or unable to manually deploy the device. This automatic activation helps ensure that distress signals are sent promptly without requiring any action from the user.

On the other hand, Category 2 EPIRBs require manual activation, meaning that the user must deliberately turn them on. This manual operation can be beneficial in situations where the person can access the device but may not want it to activate until they are sure it is needed.

Understanding this key difference is crucial for effective maritime safety, as it dictates how the device will function in emergency situations. Automatic activation can enhance response times and increase the likelihood of rescue, whereas manual activation allows for more control by the user but relies on them remembering to activate it in a crisis.