I’ve been using the Samsung ST Arrival Sensor in my son’s backpack to get a notification when he’s arrived home from school, but it’s been working very unreliably. It will work for a week then just stop. I’ll need to remove the the device from the ST network and re-add it again to get it working. I’ve also replaced the batteries in the device, and have sent it back for a replacement. Same issues with sporadic functionality. If I hold the device inches away from the ST hub it still won’t register as arrived.
Are there other alternatives available? Maybe a Z-Wave based device? He doesn’t take his iPhone to school so I can’t use that method. Suggestions are appreciated!