The Elro RM127K heat detector arrived today and I installed it right in the kitchen over the stove and tested. The device is working properly and triggers the alarm from 57 degrees Celsius. A 9V battery is already at. For the bracket, two screws and plugs are included. The installation is very simple. In the living room and bedroom I have installed smoke detectors, but in the kitchen which is problematic because it may lead to false alarms through the haze when cooking. Since the heat detector is the perfect device, if times on the stove that burns. I can only recommend the device. Little money for a lot of security!