EVSO-32EUR 24v 32 Tone Sounder Base

The VSO base sounder is designed to work with a variety of detector brands to provide a cost-effective sounder solution.
As standard, the VSO comes with 32 sounder tones with a two-stage alarm override which is activated by a third negative wire from the panel.
Suitable for conventional and two-wire (SAV-WIRE) fire alarm systems.