https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions
Product Info
T-740 Intercom

T-740 Intercom

Golmar S.A.
Region: Spain
Update: 11/27/2006
Key Specifications
- Input for door bell apartment push button that saves the use of a door bell.

- Use the lock release button to call the porter''s exchange.

https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions