Alarm.com ADC-SEM300-VT-VZ-M Communicator For Honeywell Vista Series (Verizon)

Alarm.com ADC-SEM300-VT-VZ-M Communicator For Honeywell Vista Series (Verizon) This model of SEM-300 uses Verizon cellular communication. If you would like the AT&T model, click here. The ADC-SEM-300 is an upgraded version of the Alarm.com SEM210-VT communicator compatible with the Honeywell Vista10P, 15P, and 20P panels. This communicator allows signal transfer from your panel to Alarm.com and/or a central station, depending on your service plan. While Alarm.com mainly focuses on intuitive self-monitoring through their customer portal or app, they also offer a reasonably priced solution for cellular signal transfer to a central station monitoring company if desired. The SEM-300 features 4G LTE cellular communication and optional broadband connectivity for a guaranteed connection and Long-term operation. What sets the SEM300 apart from its predecessor is its ease of installation, multiple fallback cellular frequencies, and external status LED lights.   The SEM300 only requires 2 ke