Medeco - Spacer Rings for 1 3/8" Door for Maxum Deadbolt Locks - Oil Rubbed Bronze (2 Pack) Pro-Lok The default audio input is

The default audio input is via the built-in microphone

Maintenance Unit (M-Unit) Requirements

Cast housing of 3/16" durable zinc alloy

the IPCs have higher photosensitivity

Medeco - Spacer Rings for 1 3/8" Door for Maxum Deadbolt Locks - Oil Rubbed Bronze (2 Pack) Pro-Lok The default audio input isSpacer Rings for 1 3 8" Door for Maxum Deadbolt Locks (2 Pack) Return Policy: We do not accept returns on unsealed products. In order to return a defective item a support ticket is needed. To receive a ticket, please contact Medeco directly at 800 839 3157 or visit their support page here. Once you have the ticket contact UHS Hardware for the return.