GEO Fence setting in APP GEO-Fence setting in APP Beesure GPS registered @4P-Touch was designed with the aim of always having the safety of your children and our loved ones first and foremost at all times. For this reason, our Beesure GPS is equipped with a sensor which, if the GPS watch is removed, automatically activates the alarm alerts. For 4G kids watch only D31U with this particular feature. All our GPS with 3 Geo-fence valid , set it on our serer end for each device. Once the kids over the geo-fence , the GPS device will send the alarm alerts /Push notification in app,in case the tracker (your child) leaves a specific area. A function appreciated by all of our users who in this way can be sure of protecting children from possible bullying. Another plus? The quick Sos Panic button that manages to immediately activate the call to emergency numbers.