The sensor works well in all of its capacities that I've been able to test (motion, noise, temperature, humidity and pressure - not managed to get a 'glass breaking' detection yet - I'm not going to break a window to find out :-) ) and its unobtrusive - looks like an ordinary smoke detector. Furthermore, absolutely outstanding support - they even helped identify a connection issue that was an incompatibility between a mobile hotspot setup and the service provider's connection parameters.