Alarm.com AT&T LTE Cellular Communicator for GC3 & GC3e

Average rating:

(based upon 0 reviews)

The 2GIG LTEA-A-GC3 is an AT&T LTE Communicator for a 2GIG GC3 or GC3e System. It allows the panel to connect with the Alarm.com servers for monitoring service. You will need an appropriate alarm monitoring plan to activate this communicator. Buy the 2GIG LTEA-A-GC3 from Alarm Grid.
  • Alarm.com
  • Amazon Alexa
  • Google Home
List Price
Own as low as *
$11.07 / mo
Finance with affirm
Our Price
You Save


The 2GIG LTEA-A-GC3 Alarm.com AT&T LTE Cellular Communicator offers fast and reliable connectivity for the 2GIG GC3 and 2GIG GC3e. Cellular connectivity is extremely consistent and a great way to monitor a panel. This communicator facilitates connectivity between the panel and Alarm.com.

With a security system, you want to make sure that it is monitored at all times. If a break-in or fire occurs, then you want to be completely sure that your panel can successfully send out signals. Cellular communication is excellent in this regard. A strong cellular connection will almost never go down or become unavailable. It will also keep the panel monitored during power outages. The same cannot usually be said for IP service, which may occasionally go down or become unavailable.

The LTEA-A-GC3 is also used for connecting a GC3 or GC3e with Alarm.com. This is an interactive monitoring and automation platform that offers some fantastic features. By accessing Alarm.com, you can arm/disarm, check system status, control Z-Wave devices, and more. You can conveniently access this service using the Alarm.com website or mobile app. Just remember that you need a compatible monitoring plan to activate the communicator.

The AT&T LTE Network is very fast and consistent, which is perfect for alarm monitoring service. The term "LTE" refers to Long-Term Evolution. Cellular service providers like AT&T have invested tremendous amounts of money into their LTE networks, and they plan to support them well into the very distant future. With an LTE Communicator, you can keep your system monitored for a very, very long time.

Note: Two (2) LTE cellular antennas come included with the communicator for ensuring strong connectivity with the AT&T LTE Cellular Network.

Note: This communicator requires GC3 or GC3e System Firmware Version 3.2.3 or higher. The latest firmware can be downloaded here.

Note: We have learned that the 2GIG AT&T LTE Communicators will "roam" to local cellular networks in Canada, including Bell, Telus, and Rogers. You will be able to use the 2GIG LTEA-A-GC3 in Canada, provided that you have adequate coverage from one of the aforementioned cellular networks.


  • Product Type: Cellular Communicator
  • Cellular Network: AT&T LTE Network
  • Compatibility: 2GIG GC3 & GC3e
  • Firmware Requirements: Version 3.2.3 or Higher
  • Package Contents: 2GIG LTEA-A-GC3, Two (2) LTE Antennas, Instruction Manual

Brand: 2GIG

2GIG LTEA-A-GC3 Compatible Products

2GIG GC3PK - GC3, 3 door/window sensors, 1 motion, and key fob kit
Factory Packaged GC3, 3 wireless door/window sensors, 1 wireless motion, and a key fob kit
2GIG GC3 - DIY Wireless Security System w/ 7" Screen
DIY Wireless Security System w/ 7-inch Screen
2GIG GC3e Verizon-LTE 10-1 Kit - Wireless Encrypted Alarm System, 10 Door/Window Sensors, Motion, 1 8-ft Cable
2GIG GC3e Verizon-LTE 10-1 Kit
Wireless Encrypted Alarm System, 10 Door/Window Sensors, Motion, 1 8-ft Cable
Hi Brett, no, it does not. Once we receive pricing we will update the price.
Does this product really cost $100,000.00?
* Based on a 10% APR with 12 months financing. APR's will vary between 10% - 30% based on credit score and various factors.