Website: https://www.obchod.bettaelectronic.com/kategoria/pristupove-systemy/riesenia-pre-kontrolu-pristupu/jednoduche-bluetooth-gsm-3g-4g-5g-kontrolery-brany/smartgate-bluetooth-pristupovy-modul-pre-1-dvere-sg-bt10-bluetooth-pal-es/ currently not in use.