Gone are the days when we didn't know what our walls, floors, or pipes might be hiding. Nowadays, with the wide range of battery-operated material detectors available, there's no need to guess. Indeed, there is a wide variety of devices that can detect buried materials, whether it's metal, wiring, or sometimes what's confined within the pipes.
The most classic remains the metal detector with audio discrimination. Today, this device has become even more sensitive and lightweight, in addition to the 3-tone audible discrimination. With this detector, the sensitivity can reach 16 cm for a 25 mm diameter coin, for example. For other objects, there are also multifunction detectors that can detect wooden structures, metal, as well as live cables (230 V) up to 20 mm deep. The Stanley multifunction material detector also has flashing and audible indicators as well as a liquid crystal display. To show what's hidden, technology provides the ultimate solution with probe cameras such as the Velleman inspection camera. This probe slips everywhere easily and allows discovering inaccessible problems within cavities or deep inside pipes.
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