With its flexible cord 10 meters, I can explore all my lines (well, those of the house). To guide, an adhesive tower fixed on a ferret Kärcher, and exploration / cleaning can begin. In turbid water, which is often the case, the lighting (adjustable to the USB connector) is insufficient to achieve the depth of field. The focus is fixed, with little depth of field, and we have to do some back and forth a few centimeters to get an idea of the landscape .... But the delivered information is valuable, it is no longer working in the dark. A focused closer point or a removable windscreen of one or two diopters, could solve the problem. For the price, essential equipment in house or hobbyist workshop.
