Honeywell Communicators

The Honeywell communicators listed in this section work directly with the Honeywell Vista series alarm systems we carry on our site. We have options for both Alarm.com communicators as well as Total Connect (Alarmnet) communicators. These communicators can add varying features to your Honeywell system depending on what services you use, such as remote interactivity features and signal forwarding to a Central station.

The most popular options we carry are the Alarm.com SEM300-VT communicators, which work with Honeywell Vista systems with a firmware version of 5.2 or higher. These communicators allow your Honeywell system to utilize Alarm.com's Interactive Service plans. The SEM300-VTs are dual-path communicators, meaning they have both 4G LTE cellular signalling and optional IP Ethernet connections for backup. Using a dual-path communicator like the SEM300-VT helps your system stay connected to service even if there is an outage on one of your communication paths. The SEM300-VTs also come with either an AT&T or Verizon SIM card, so be sure to select the cell provider that offers the best signal in your area. The SEM300-VT-AT uses an AT&T SIM card, while the SEM300-VT-VZ uses a Verizon SIM card. Each unit has a built-in Ethernet port, so if you would like to use the IP backup, plan on running a cable from your router or modem to the location of the communicator. Using Alarm.com Interactive services with your system allows you the option of remotely controlling your system via the Alarm.com app, with varying plans offering system control, Z-wave automation, and a number of other neat features. Alarm.com communicators sync to your system, meaning they require minimal programming to set up and will handle the majority of the internal programming on their own. 

In addition, we also offer the LTEM-X communicators for use with Honeywell's proprietary services: Total Connect (Alarmnet). The LTEM-X communicators are 4G LTE cellular-only devices, which come with either an AT&T or Verizon SIM card. The LTEM-XA uses an AT&T SIM card, while the LTEM-XV has a Verizon SIM card. These communicators will work with Honeywell Vista systems version 5.2 or higher. The LTEM-X communicators require the system to be programmed to properly work with an external communicator; however, they are simple to install, requiring only a keybus connection. Using a Total Connect communicator, you'll be able to utilize Honeywell's Total Connect app to remotely control your alarm system and send signals to a Central Station for monitoring. 

Lastly, we have the Honeywell LTE-21V, which is the cellular card for the Honeywell Vista 21IPLTE alarm system. This module adds onto the 21IPLTEs onboard Ethernet communicator, allowing it to also utilize a cellular connection for reporting. The LTE-21V uses a Verizon SIM card. The LTE-21V is for use with Total Connect services, just like the IP connection for the 21IPLTE.