Siemens ZR-HMC-R (500-636171) Red Multi-Candela Strobe Sale these devices use a universal

these devices use a universal mounting plate with an onboard shorting spring that ensures wiring continuity before devices are installed

It uses a Remote Unit Interface (RUI) connection

The System Sensor L-Series product line of wall and ceiling mount chimes and chime strobes includes a variety of features that increase their application versatility while simplifying the installation

System Sensor B112LP 100 Series Relay Base 4 Wire 24 Vt

red housing with white letters and white pull lever

Siemens ZR-HMC-R (500-636171) Red Multi-Candela Strobe Sale these devices use a universalSiemens ZR HMC R (500 636171) Red Multi Candela Az Strobe