below is the link to the RVS wireless bluetooth camera system i purchased.
cheaper on their site than amazon etc....free freight. they give a coupon etc....
received it and i love the construction and HDness of the product.
also the monitor & camera are independent of any other signal...
so i tested it on the back of my truck to see how it works. was wonderful.
camera takes a 9V battery & the monitor is powered by the cig socket.
the camera is held on with magnets which are VERY strong. in other
words it will not fall off of metal. so I'm all pumped about my new
back up camera and mounted it on the center of my rear RV bumper
as it would not hold on the aluminum body of the RV. duh.....
im backing up and my monitor is freezing & going blue.... (death)
i contacted RVS when we returned and they stated they have had
some problems with aluminum RV's not allowing the signal to
the camera. i really love the product so i agreed to try it again with
a new battery. this past weekend i was able to test it again.
i put the camera on the far left or driver side of the bumper. it never
lost signal, never lagged or froze up. it worked like a champ.
so the final analysis is I'm keeping the set-up as i was able to make
it work.... if i have one complaint, my 58 yr old eyes could use
a little larger monitor screen though it does work well.....
hope this helps.
RVS-83112 | Wireless Hitch Camera | Rear View Safety