SIEMENS

The Siemens Building Technologies
The Siemens Building Technologies Division is a service provider, systems integrator, and a manufacturer of products that combine solutions and concepts for energy-efficient building automation, fire protection, electronic safety and electrical installation engineering. Due to this unique combination of activities, Building Technologies is a leading global player in the building automation market.  

Mass Notification information from SIEMENS:

Higher Edu Overview - MNS