![Amazon.com: Blue by ADT Systems - Sensor de puerta y ventana, inalámbrico con un timbre abierto personalizable, compatible con la mayoría de puertas y ventanas solo compatible con azul : Herramientas y Amazon.com: Blue by ADT Systems - Sensor de puerta y ventana, inalámbrico con un timbre abierto personalizable, compatible con la mayoría de puertas y ventanas solo compatible con azul : Herramientas y](https://m.media-amazon.com/images/I/416jXI6AioL.jpg)
Amazon.com: Blue by ADT Systems - Sensor de puerta y ventana, inalámbrico con un timbre abierto personalizable, compatible con la mayoría de puertas y ventanas solo compatible con azul : Herramientas y
![Blue by ADT 8 Piece Home Security System Smart Hub, 4 Door/Window Sensors, Motion Sensor - Walmart.com Blue by ADT 8 Piece Home Security System Smart Hub, 4 Door/Window Sensors, Motion Sensor - Walmart.com](https://i5.walmartimages.com/asr/804d6eb9-6ff3-4a12-bf4c-33bd1d77cdf9.e95426419fe2b6d560f36fc1d3002dd2.jpeg)
Blue by ADT 8 Piece Home Security System Smart Hub, 4 Door/Window Sensors, Motion Sensor - Walmart.com
![Moved into a new house and the previous owners had ADT installed. I'm assuming I would have to call them to be able to use this sensor? : r/homeautomation Moved into a new house and the previous owners had ADT installed. I'm assuming I would have to call them to be able to use this sensor? : r/homeautomation](https://external-preview.redd.it/Og0lsmoz-nmdHdHrmFokN9e7Yl5He5UsmF3ycePFT3I.jpg?width=640&crop=smart&auto=webp&s=bb9011e05f8856490d218d478c99758e6048c512)