Agrippa Acoustic Range
The Agrippa acoustic products are a cost effective plug and play type solution.
The devices learn the sound of your specific fire alarm, releasing the door in the event of a fire. The releasing trigger reacts to a particular sound rather than simply a loud noise, significantly reducing false activations.
This new innovation in the industry is wire free, so it can easily be retrofitted to any door.
It is battery operated, requiring only two C cell batteries, which last for 12 months.
There is a timed release feature.