Thank you all for your answers.
I've seen HKC and already contacted them, but it seems they don't have much interest to export to Portugal, since they did't replied to any e-mail I've sent. Still I'm going to try to contact them by phone.
Pyronix, is my last resort since I have to make a deal with one of my competitor to sell Pyronix because they have exclusivity to Portugal, but if it's a brand that is worth it I'll do it.
Scantronic, I'm doing some tests with it right now, the panels seem to be like the old ones in terms of reliability. But I'm a little apreensive with their wireless capabilities despite being 1 way. The distance that the detectors seem to cover is very short. I've done some tests with one detector and with just one wall in the way it barely reached 15 meters... very short distance compared with the competition. Still I don't have any experience with this panel on site, so maybe you can give me your opinions if this is true.
Thank you
P.S - If you remeber any other good brand, please do tell.