Alarm.com 2-Door Reader Expansion Module is ideally designed to add two extra readers to the device,  Alarm.com 2 Door Smarter Access Control Kit. Each of these reader expansion modules provides and adds two reader ports, four relay outputs, and four programmable inputs to the system that provides more efficient results. Connect the expansion module to the controller using a shielded, RS-485 twisted pair.

What makes this ideal is that it Provides all I/O needed for two additional doors, making it more efficient and innovative.

Main Features

• Provides all I/O needed for two additional doors
• Two dedicated reader inputs
• Four relay outputs
• Four programmable inputs
• For use with Alarm.com 2 Door Smarter Access Control Kit only
• Connect up to 16 expansion modules per expansion port, up to 31 expansion modules in total
• Scan-to-add card format and serial detection
• Control doors and manage users from the Alarm.com app
• Integrated Alarm.com intrusion and video offerings
• User-friendly, flexible scheduling
• Configure hardware using web or app for easy installation
• Plug & play installation — no networking expertise required