A:AnswerThe space between the Contact Sensor and the Magnet is 1 inch or less. When you open the door or window, you see the LED flash green (and hear the chirp tone, if enabled). There needs to be ½ inch of space around the Sensor so you can slide it open to replace the batteries.
A:AnswerHello Cheatabear,
Great question! We are happy to inform you that the Ring - Alarm Contact Sensor (2nd Gen) (6-Pack) is available for purchase at Best Buy. If you have any further questions, please reach out to us directly at 18006561918. We look forward to hearing from you. -Jamila at Ring