Not 100% matured but usable!

Have the device for locating our little daughter in use, which is in an "open" forest group in kindergarten and therefore theoretically could cut off times.
Honestly even I managed after several internet searches bring it the unit to run properly because the enclosed instructions and the instructions of the manufacturer and sales (Pearl) are simply insufficient or simply wrong.
Here therefore some basic information:
1. The tracker requires (as he has only an on / off button and a SOS button) an external device to adjust: a smartphone with the free right app to configure.
2. Only when this is adjusted on something in the smartphone app transferred to the tracker by SMS. So if you do not constantly rumstellt or makes a manual position request tracker, needs no SMS flat rate for Smartphone!
3. The tracker itself sends no SMS but only data on the data network of the mobile network via GPRS. Per location transmission comes with me just 1kb existence!
4. Select the right card !!!
You need a phone card, which uses GPRS as the basis for the tracker. Since this is a rather obsolete standard must hingucken in more detail in the election. IMPORTANT: There are several prepaid providers who offer this. I chose the "9cent" of blue, as here arises no monthly fee for the first 10MB GPRS - then 24Cent / MB. Initially charged per 1 kb and according to 10MB in 10kb increments. This can quickly become expensive if every 2 hours 1MB is charged with daily tracking. Therefore, I booked for 4.99 / 30days a 100MB Datenflat to that is also billed per 1 kb. There are those packages from other suppliers and if you will track a lot, then this is worth it.
Back to the unit:
If the SIM card the PIN request must be deactivated only before use and the mailbox off (insert in another phone for this and do). After initial installation and charging can start.
In buildings, radio reception is partly modest with me. If he finds he uses these satellites as well and displays this accordingly on the display. If he does not and triangulated through the mobile phone network, the display is different with me up to 1km - not usable.
Outside is thanks to GPS but everything was great.
As others reviews say, no matter what you set, when the device is in motion, it sends continuously (up to 2x / minute). Only when it is no longer stimulates brought to bear (eg every 30 minutes) setting. In addition, you can specify that it only announces itself when it is moved or when it has stopped moving. Pressing the SOS button on the phone sounds a warning tone and a message will appear.
The battery lasts at our max. 2 days at each 6 hours intensive tracking.
The app is not so mature and must be restarted here and there. In addition to the settings you can look for commands in the last days of history. There, the waypoints are displayed together.
From my perspective, the device is absolutely fit for its range of use - especially when you consider the size and weight.
Who trackt little that comes certainly with a prepaid card with no monthly costs, for the rest is worth a small data-Flat.