Interlocking relay module is an implement for two doors egress controlling ,such as bank, prison ect. When the first door opens and close properly, the second door will open. Interlocking relay module is the ideal choice for the purpose of interlocking door control project, which is easy to be installed, professional and durable and create a more safe occasion for you.

The Extended relay module offers 3 contacts : NO,NC,COM to make both of the electric lock and power supply connection easier and convenient

When the power off, NC contact of the relay will switch to NO contact for output, for the use of remote surveillance to make the whole system more safe.

DC12V-28V to DC12V

DC36V-72V to DC12V

The Time-Delay Control Module is used to offer the time delay function to the access control system