The Sense Keypad lights up briefly whenever I move in its proximity, yet it is not listed as having a motion sensor. What sending technology does it use and for what purpose?
To be more specific, the key that lights up is the one corresponding to the current mode: either disarmed, home or away. It doesn’t light up with every motion but only if you haven’t moved for the last minute.
Welcome boyanib. The keypad incorporates a PIR sensor. Its purpose is to activate the backlit status button upon sensing a person. This allows a person to verify status and/or change mode (arm/disarm) easily in dim lighting conditions.