Web-Based Configuration:
The technical manual highlights mandatory monthly tests as per EN 50136-1 (European alarm transmission standard). The ST105NV supports automatic test transmission (every 24h). To enable:
#P000000TEST24=1 Elkron Communicator St105nv Manuale Tecnico Pdf
Also note: In Italy, where Elkron is widely used, the Manuale Tecnico reminds installers that the ST105NV must be registered with the Commissariato di Pubblico Sicurezza if it replaces a phone line-dependent dialer, due to the "Legge 38/2009" on security systems. Power Supply : 12 VDC/24 VDC or 110–230 VAC