Aurora Tracker configuration (if any)

Hi all,

I recently bought this tracker:

image_2021-11-03_001838

but it comes without any documentation, and I’m not sure about it functions…

So far, it starts beeping when there is no power supply (it has his own battery) and that’s fine… but it will be nice if it beeps also when there is no PWM input on the yellow wire… am I wrong ?
Anyone else has this or a similar device and knows how to configure ArduPlane to deal with it ?

thanks in advance,

        Giampaolo