VEVOR Early Alert Bed Alarm System Wireless Bed Sensor Pad & Call Button PagerProduct Features Smart Pre Alarm System When the patient approaches the bed pad edges or moves to the warning zone on either side, this early alert bed alarm for elderly will send an alert to the pager, allowing caregivers to respond promotely before the patient already leaves the bed. You can activate or deactivate pre warning functions on left or right side, offering flexible use. Peace of Mind Equipped with high sensitivity pressure sensors, our