I am trying to find a double-illuminated 12v rocker or pushbutton switch (one light for off, 2 lights for on, or at least different colors for on/ off), single-throw, on-off, but...
The circuit I want to close with the switch is a 5v continuity line that should be electrically segregated from the power going to the switch light.
Is there a standard switch type that does this without employing a relay of some kind? Trying to keep this (relatively) simple.
Scenario: I'm installing an AIS transponder in my boat that will receive and transmit telemetry (course over ground, size, type, name, and speed of vessel) over VHF to other vessels with the same type of equipment, but it's generally bad "manners" to transmit when you are in a marina or at anchor... so the unit has two wires coming out of it that, when connected, you transmit, and when disconnected, just receives. I want to install a switch I can easily see in the dark that lets me know if I am transmitting or not.
If someone could tell me what I should be looking for, I'd really be grateful. That way I can look it up on common websites and (hopefully) get one with a custom face for it.
Thanks for your attention.