Activate a lockdown / message from a telephone handset
Once connected to your phone line, the ringer relay switch can be used to activate an external siren, buzzer, bell, light, etc.
£110.00
Activate a lockdown / message from a telephone handset
Once connected to your phone line, the ringer relay switch can be used to activate an external siren, buzzer, bell, light, etc.
a:1:{i:0;a:3:{s:5:”title”;s:17:”Support Documents”;s:2:”id”;s:17:”support-documents”;s:7:”content”;s:108:”a:1:{i:0;a:3:{s:5:”title”;s:17:”Support Documents”;s:7:”content”;s:0:””;s:2:”id”;s:17:”support-documents”;}}”;}}
Amplifiers
Digital Break Class Change Timers
Door Intercom
Door Intercom
Microphones
Activation Methods
Schools & Academies