Scanner with Built-in Computer is an OD scanning system that permits testing of in-service tubes and pipes for almost any boiler. The Scanner can be adapted to many different applications such as testing ligaments, bends, space-constricted areas, and small-diameter tubing. The Scanner has environmentally sealed connections, AC or DC operated, standard six-foot or optional 25 foot scanner cable, weight under of 12 lbs and has 5-hour of battery life. The Scanner is a one-man, multi channel, NDT system that detects and quantifies ID, OD and internal material defects in ferrous materials. The Scanner uses a dry, non-contact method and is based on our low frequency electromagnetic technique. The Scanner with Built-in Computer has its own built-in computer that is conveniently attached to the operator’s body.