Based on the 1144 platform, the 1144-1P-PSV is a one-button key fob with built-in proximity credential, designed to be used across multiple sites and supervised at a single monitoring center using SCS-VR Virtual Receiver. It sends a "Keyfob is Alive" message every seven days to any panel in which it is programmed. Requires XR Series panels with Panic Supervision enabled in Panel Programming and monitoring center running SCS-VR