Alpha DTSMB Speaker MIC Modular Brown

The Alpha DTSMB Speaker MIC Modular in brown is designed for use with Alpha's digital-dial modular series door entry stations. It connects to 2-wire ReliaBUS apartment handsets such as the HT3011 and HT2011 models.

The unit includes a weather-resistant speaker and a long-life electret condenser microphone. It features an illuminated dry contact low-voltage light push-button, along with a plug-in connector or easy wiring options for installation. The compact design measures 3.94 inches wide by 3.94 inches high (100mm x 100mm) and snaps into compatible panel trim frames.