The JB-2 MED features four-frame recording so visitors are clearly recorded even if moving. Images can be viewed individually or on full screen. It also provides manual recording and selectable picture recording, and stores up to eight images in memory. The JB-2 MED has a sensor-activated notice. In absence mode, an alarm is heard and shown on screen when motion is detected. Alarms automatically reset after user determined six to 30 seconds. Any device with normal open or closed dry contacts can be used.