I used mine for canopy latch alerting, toga, smoke system stays, and left/right mag off alerts.
The canopy latch alert circuit is off a small reed switch and magnet in the tip of the canopy pin, if it isn?t all the way closed it squawks pretty good at you when you push power up.
Toga is a button on my stick, performs a very nice go around at mins all coupled up with just a push of the button and throttle!
Smoke system alert is just a green or yellow alert (no audible) on the screen, didn?t want to waste space with a light cluttering up the panel.
And the mag alerts were a pretty easy addition to make sure I never do a single mag takeoff. Had to use dual pole ignition switches to get a circuit to run the input. Might have been another way to work it but I sure like how it turned out.
Good luck, lots of decisions!
Fitz
RV-4