The outdoor siren is NOT water proof and the siren that should sound louder than the indoor siren does not have even 30% of the indoor capacity. The siren battery is a joke.
You should send all buyers a more powerful indoor speaker and another battery, the ones mounted in your siren are for a children's toy not for an alarm. And related to the waterproff, turn the siren and forget it in the back where you can see the electronic board through the case.
All informations are right. Pgst store is very helpfull. They answer all my questions before I buy. Fastly arrived. I paid low tax to customs office.. It works very well with pg-107 main panel and Tuya smart application.. I will advice to my friends. Thank you PGST store.