What is the approximate area that the sensor will detect motion?

Hello, Great question! Motion detection range on Ring devices is up to around 30 feet, with the Motion Sensitivity slider at the maximum level. If you turn Motion Sensitivity down, this range will be lowed. Here is a helpful article that elaborates on the motion detection range and settings: https://support.ring.com/hc/en-us/articles/360022461232. Thank you, Alexis with Ring