Videx 3000 Series 2 Button, Call Tone (SENTRY 5+1 AUDIO)

- Connection: SENTRY 5+1 AUDIO - 2: Door open and service button - Controls: Call tone volume (3 levels) - Mounting: Surface (ABS shockproof plastic housing), dimensions (mm): 85 (W) x 218 (L) x 55 (D) - System compatability:5+1 audio systems using the Art.4838 speaker where privacy of speech is required. Can also be used on all Sentry 5+1 audio systems.