This microphone extension gives the door transmitter the reach to listen to sounds up to 2.5m away.
The door transmitter can be 'trained' to recognise the sound from your doorbell, intercom or other existing alerting devices.Key Benefits:
This is an external microphone that can be used when you need notification from sources that are hard to reach. For example when you need alerting to the doorbell and an intercom telephone that are mounted some distance apart.
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