Description
The Alarm.com ADC-SEM300-VT-AT is a powerful dual-path system enhancement module (SEM) designed to upgrade compatible Honeywell/Ademco VISTA panels to Alarm.com’s award-winning interactive services. Supporting both AT&T 4G LTE and optional broadband Ethernet, this SEM ensures maximum reliability, fast signaling, and the longest service life possible.
With built-in Z-Wave Plus capabilities, the SEM300 goes beyond security to integrate home automation, energy management, and video monitoring into one smart solution. Installers benefit from seamless setup via Alarm.com’s Partner Portal and MobileTech app, while end-users enjoy real-time alerts, system control, and remote access from their smartphone or computer.
Key Features:
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Dual-path signaling with AT&T 4G LTE and optional broadband Ethernet
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Secure and reliable wireless reporting of alarms and events
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Remote panel programming with Uploader/Downloader support
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Works with Honeywell/Ademco VISTA-10P, 15P, 20P, and 21iP panels (2005 or later)
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Full support for Alarm.com interactive monitoring and alerting
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Integrated Z-Wave Plus for smart home automation and energy management
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Video monitoring compatibility
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OTA (over-the-air) upgrades for long-term performance
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Compact, fire-retardant white enclosure with LED status indicators
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ETL listed to UL985, UL1023, and ULC S545 safety standards
