Garmin just emailed me some info on a new product they are selling.
https://buy.garmin.com/shop/shop.do?pID=67686
"GTU 10 is a GPS locator that combines a web-based tracking service with GPS technology so you can keep watch on children, pets
and property. Tracking the GTU can be done on the web using any computer or by downloading the free Garmin Tracker app. If your phone can receive text messages or email, you can use GTU."
"Using your computer or mobile device, you can also:
Create up to 10 geofences (virtual boundaries) for your device. When your GTU 10 enters or exits a geofence, we can send you an email or text message notification.
View track history of where your GTU 10 has been.
Customize device settings for optimal performance, including low battery/powered off notifications to let you know when it’s time to recharge or when the device has been turned off."