Unable to add the water sensor to my account pls help

Hello, I am attempting to add the Ring water sensor to my setup. However, when I select “Add a device” the option of “Security Devices” does not show on my iPhone which is where the water sensor is located apparently. I’ve tried just scanning the QR code In the other options but that does not work. I installed other sensors with the alarm when I first set everything up. I am on IOS. see attached screenshot of the set up device screen (I tried installing The water sensor using every one of the options with no luck). Any help is appreciated.