This series includes different products like infrared thermal imager with different resolution and performance for option, it is widely used in eletrical troubleshooting and inspection, home use application. b) Pipe blockage detector with different range like 20, 30, 40m. c) Metal scanner is commonly used in security and monitor application, high sensitivity to detect many kinds of metals. d)Wall stud scanner, it has 4 working modes to detect wood, metal, non-metal, and AC wire. Besides, e) GPS land meter works by GPS, measure large area like farmland, forest, ect. Users can even drive his vehicle to measure if the area is too large to walk. For more details, click each page to know more highlights and features about measuring instruments.