Ok so this a movement detection device , fully compatible with bentel systems after a bit internet H stalking and Google translation
https://www.ebay.co.uk/itm/ART471N-Sensore-a-fune-compatibile-Bentel-per-Antifurto-Tapparelle-avvolgibili-/182713252651
If you don't speak English , your phone should ask you to translate description to english
Any which are hybrid panels , don't think Veritas is , and the 9651 isn't either good panel but old
Pyronix castle not sure? Someone else might know
Otherwise , texecom ricochet, hkc, enforcer if you want something DIY type
Alarm with good internal sounder does th job with some kind of monitoring
CCTV is a luxury
These days it's ring doorbell that has become people's main security
Muppets.....
1. Yes you need port forwarding or update IP manual each time, unless Honeywell have got there act together?
2. No better get installer to update firmware
You could try selfmon service instead can work in conjunction with your gx app