Quantity   Component name
1 × ESP8266 https://www.amazon.com/gp/product/B07HF44GBT
2 × Reed Switch Sensors https://www.amazon.com/gp/product/B00LYCUSBY
1 × Magnetic Lock https://www.amazon.com/gp/product/B07DLYJH22/
1 × 4-wire Phoneline
1 × Custom PCB
1 × 3D Printed Enclosure