"This is a pretty decent product, but is let down by the installation. The external door station seems very robust and gives a good quality video image and voice. The monitor unit is plastic and isn't very robust, but probably doesn't need to be as it's property owner that uses it.
The big problem with this system is the connectors to both indoor and outdoor units. They use PCB terminal connectors with flying leads, but the leads are only about 3 inches long. It is almost impossible to use these as there just isn't sufficient cable length available to place a connector somewhere convenient. I ended up buying crimp connectors to replace the ones provided, which works well but it is difficult to find the right ones and it is a very fiddly job. Why oh why the units don't come with screw terminal connectors is a mystery - this would have made life so much easier."