Average build quality. During the initial installation and when we tried to change the angle of the camera, the image would disappear on the monitor. We were referred to CTC's service department. Our technician informed us that it is normal and we should not change the angle of the camera. However, they never answered why there is an adjustment screw and why it is mentioned in the manual... It's a shame because it's a Greek company.
Other than that, it generally functions satisfactorily. Its power supply can be installed inside the electrical panel, the monitor is made of metal, but the LED lights that turn on at night are very intense and dazzling (they are not infrared). However, I think it is a bit expensive for what it offers (around €280)