Alpha TSMBW Speaker/Mic Module-'Bus'-White

Speaker/Mic Module-'Bus'-White Used with HT3011 Type S.T.R. 2 Wire 'Bus' Handsets Only and Modular Style Panel(S). The TSMBW is 2-wire (loop) ReliaBUS™ apartment (i.e. HT3011, HT2011).

The speaker/microphone designed to be series door entry stations. It features a weather-resistant speaker, long-life electret condenser microphone, illuminated drycontact low voltage light pushbutton plug-in connector for easy wiring. 3.94"w x 3.94"h (100mm x100mm), made snap into MT panel trim frame(s). service it, once installed, use model 13510 key / tool unit.