Originally posted by velly_16v_cab
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The system sounds good and I looked at this a while ago but seems to have some major issues in that detection of people, children, dogs etc isn't very good. Most of the websites that sell it don't really go into a lot of detail and if the system was as good as they claim the auto manufacturers would be using it as it's cheaper and they could just build in into the bumper and charge $$$ to plug the module in to activate.
There's often a reason why these products don't sell well and at this stage I'm suggesting research well and don't buy without getting all these questions answered. If they do work well I'd buy one in a flash.
The systems also don't work unless the car is moving whereas the ultrasonic ones work if the car is stationary and something moves in behind the car (like a child or dog).
They also detect things like manholes, buried cables etc. They work on the reduction in distance from sensor to target not absolute distance so if the item you are reversing towards is moving at the same speed it won't be detected.
A quick search on google shows the usual comments about them working sometimes and not others and trouble detecting people and animals. Still I guess people and animals are soft so won't damage your car like concrete and steel will

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