How may the battery replacement date be verified for an emergency locator transmitter ELT?
A、Byremovingthebatteriesandtestingthemunderameasuredloadtodetermineif50percentoftheusefulliferemains.
B、Byobservingthebatteryreplacementdatemarkedontheoutsideofthetransmitter.
C、Byactivatingthetransmitterandmeasuringthesignalstrength.
发布时间：2025-10-02 09:54:16
