This is the PCB for the door sensor. This is the board that you would solder all of your components to.
Description of Assembled Door Sensor: "It is a sensor that connects to our openhab server through MQTT and tells it the state of the door"
Door Sensor PCB
More information for the door sensor can be found here: https://www.mksmarthouse.com/door-sensorThis is only the PCB Board, no other parts included. If you are looking for a full kit, click here: https://www.mksmarthouse.com/product-page/door-sensor-kit