Zenitel STB-3 COMBINED CALL-PLUGBOX SIGNALRELAY (2A) w/o SP – IP66

This product belongs to the ETB/CTB talkback system range, but is tested and approved to be compatible with Phontech CIS Talkback systems.

• Calling unit
• Wall mounting
• Waterproof
• Call-button for calling Master unit
• Socket with dust-cap for connection of headset or microphone
• Built-in relay circuit for operation of external signalling devices
• Forming a loudspeaking Talk-Back substation together with a horn loudspeaker (VML-1520)