The Teslong NTS500 Inspection Camera can be used for mechanical inspection, car repair, plumbing fixes, electrical installs, homeDIY, wall upgrades, HVAC maintenance, and more. It is the perfect inspection camera for conducting non-invasive inspections of small areas, such as looking in an engine's combustion chamber through the spark plug hole or inside a wall without damaging the drywall. This stand-alone inspection camera is very easy to use and is IP67 waterproof with a tempered glass screen and drop resistance.