This device does not perform as advertised. With proper use and receiver placement in the cab of a truck, I was only able to move the camera 20 feet before losing signal. Very disappointed. Wanted to mount a camera on the back of my 40 foot toy fifth wheel truck to secure the long narrow driveway on the side of my house. No signal. Moved the camera forward 10ft (near the rear side door. Still no signal. Moved the camera to about the center of the trailer (using the included triangular suction cup mount, which is actually pretty neat). Started getting a signal , but it stayed getting in and out it was too far ahead anyway as he couldn't see behind the trailer.He was very disappointed with both the product and the false reviews.It didn't even come close to the honestly advertised distance if you only need it to guide attaching the truck to the trailer then it should work.
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