LuxtronicsThe 4-in-1 stud finder is used to detect the center position of the wooden stem, the metal position and the live wire in the wall of wood, gypsum board and other materials, and it has an AC warning function.
WintactAs one resistance meter for object surface, it can measure the resistance value on object surface by putting two parallel electrodes close to object surface to be measured, so as to judge whether the measured object is a conductor, static material or insulator; meanwhile the meter can be used to measure the resistance to ground of object, which is specially applied to different anti-static fields.