Hi Andrew, I have a Sealy borescope that I got off e bay as an ex demo model. I very rarely use it and when I do its about as much use as a chocolate teapot. It's a fibre optic type and its immposible to bend the tip to the tight angle that you need to do a proper inspection. If I do bend it tightly it goes out of focus. If you still want to get one try this site, they seem very reasonable on price. http://www.dartsystems.co.uk/shop/index.php?cPath=51 HTH, Bryan.