Price vs. Tune performance

The "monitoring system" operates a total of properly. The specified "radio link data" are but rather generously sized. The screen layout is a slight delay but still acceptable.
If one has however several thick walls to "bridge", 20 meters are almost the limit.
The image transfer is quite good on the whole. Especially at night radiates infrared system almost 15 meters and lit so good.
The image sensors are sufficient to activate an alarm. He's also loud enough to wake up at night.
The manual is down a bit thin. In addition, the German menu in a case with "No actually" thinks. Here, I first thought that the unit was defective; No, only the "Directions" is wrong in this case.
Here needs to be improved.