What does the flashing red light on the EF Johnson 5112 indicate?

The flashing red light on the EF Johnson 5112 serves as a clear indicator of a low battery condition. When this light starts to flash, it is a warning signal that the device’s power level is critically low and that immediate attention is needed to recharge or replace the battery. This helps ensure that users are aware of the device's status, allowing them to take action before the device becomes inoperable due to insufficient power.

On the other hand, the other indicators related to transmitting, receiving, or scan mode do not correspond to a flashing red light, making this specific alert a unique signal that directly pertains to the battery’s charge level.