Electronic and battery-operated sensing and detecting equipment in the nature of stud finders, edge finders, center finders, circuit breaker finders, level indicators, level measuring machines, carpenter's levels, water detectors, and metal detectors; measurement tools and measurement instruments in the nature of instruments for measuring length and size of rooms and structures; electronic measuring devices in the nature of edge finders, center finders, and room measurement tools in the nature of laser measuring systems; metal detectors; electrical wiring detectors in the nature of circuit breaker finders; moisture detectors in the nature of water detectors; utility detectors in the nature of circuit breaker finders, water detectors; sensing and detecting tools, namely, measures in the nature of stud finders, edge finders, center finders, circuit breaker finders, level indicators, level measuring machines, carpenter's levels, water detectors, metal detectors, and room measurement tools in the nature of laser measuring systems; water sensors in the nature of sensors for measuring and identifying water leaks; electrical current detectors in the nature of circuit breaker finders; electronic water leak sensing devices for detecting leaks and utilizing radio frequencies for providing user alerts; tools to locate objects behind solid surfaces and within solid materials in the nature of magnetic and electronic stud finders, metal detectors and circuit breaker finders; and embedded computer software for sensing objects or materials obscured by a wall, ceiling, floor, or any solid surface in the nature of wall studs, rafters, joists, or other hidden construction members, circuits, metal, edges, water, and center points and communicating the sensor results with the user, sold with all the foregoing