Re: Affordable GPS-EPIRB w/10 Year Battery Life
"Activation: Manual switch with test facility"
It is unclear whether this EPIRB has the old-fashioned and useless "test" switch, or it actually sends a test messagfe which confirms 100% operation of the transmitter by actually sending a message through the system.
Some years ago ACR had a problem with the "test" switch and light indicating EPIRBs that worked--while the actual transmitter was defective and not transmitting. I wouldn't touch a new one unless it did actual live test messages.