Security doesn't have to mean
loud false alarms, hard - to - remember codes and bulky sensors.
Not exact matches
The Agrippa fire door holders are activated only by the sound of the building's fire
alarm, meaning
false activations by
loud noises such as pupils or vacuum cleaners are eliminated.
This ensures the closer's releasing trigger reacts only to the precise sound of the fire
alarm rather than extraneous
loud noises, so
false activations are virtually eliminated.