EST 3

The EST3 is a combination fire alarm, mass notification, and security panel^[1] made by EST (Edwards Systems Technology). The EST3 was released in 1997^[2]. New orders of the EST3 were discontinued on December 31, 2023, but Edwards will continue to provide parts and supporting materials for existing installations.^[3]

Resources

↑ https://www.tisab-inzenjering.co.rs/pdf/pozar/3-SAC_SECURITY-ACCESS-CONTROLL-MODULE.pdf
↑ https://web.archive.org/web/19990420112411/http://www.edwardsinternational.com:80/whatsnew/index.htm (Does not mention introduction date, will change when an official mention is found)
↑ https://www.psintegrated.com/blog/est3-sunset

[1] ttps://www.tisab-inzenjering.co.rs/pdf/pozar/3-SAC_SECURITY-ACCESS-CONTROLL-MODULE.pdf

[2] ttps://web.archive.org/web/19990420112411/http://www.edwardsinternational.com:80/whatsnew/index.htm (Does not mention introduction date, will change when an official mention is found)

[3] ttps://www.psintegrated.com/blog/est3-sunset

[1]

[2]

[3]