Thankyou for your reply. I do have reversing camera, but I realise I need some help to judge distances when the camera doesn’t show.We have parking sensors (and a camera). Typically, there are 4 sensors fitted. They will either be hard wired through to the front of the cab or wireless if your MH is too long.
I can't tell you the make on ours as I got the dealer to fit them but they work fine alongside the camera. When reversing ours (8.7) long, I need all the help that I can get.
I did have them fitted to 2 cars of mine some years ago and just picked a random company from the internet who did fitting at home. Worked a treat.