Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I absolutely hate it

I bought this system online and waited with installing it a few months. After only a couple of weeks, it started to beep to signal that the battery was low even when it was not armed. I changed the battery but nothing changed. And then it started to beep often and long for no reason. There is no way stopping the beep. The sensor also makes weird sounds when there is movement even when the system is not armed.Another problem is that somebody who knows how the system works can simply unplug the device and take the battery out. It will take merely 5-10 seconds to do that.I finally took it down and looking for a more reliable system.