With sensitivity setting set to High, the C1 and C2 cameras can detect motion from as far as 6m away. You can use the Resideo app to adjust the sensitivity settings to High, Normal or Low as needed for your situation.
In addition, you can create up to two motion detection zones for the C1 camera and four motion detection zones for the C2 camera. You'll assign individual sensitivities to each zone, so that motion is detected in specific areas within the camera frame.