Sirens are divided in two main groups:

• addressable – designed to connect to addressable gas controller GA-ADR and communicate via specialized communication protocol over RS-485 interface
• conventional – controlled by relay or digital output devices 12V. With light and sound signalization.

Addressable

• double tone
• RS-485 interface
• light indication

Conventional

• light and sound indication
• power supply 12V
• easy to install

The siren gives sound and light indications when different alarm events occur.