Dual Cam Plumbing Inspection Camera with 360° Rotating Side Camera 7" HD Screen 32ft

SKU: GW45.0095US

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The diameter of the camera is approx 0.9in, so it works on pipes larger than 0.9 inches, as long as you can put it in. I used it to inspect about 30 feet of 2.5” piping that was a straight run with no bends. 
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Yes, the camera is made of aluminum alloy and rates IP68 waterproof and dustproof, I have used it in duct work and under a manufactured home. 
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The cable is 32ft and it’s detachable. 
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No, only on-site viewing. 
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It should, that's not what I bought it for, but yes, I don't see any reason why it wouldn't work? It is quite flexible and will go in as deep as the cables length. 
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The diameter of the biggest part, namely the camera head, is 23mm/0.9in.