US Nuclear Corp., together with its subsidiaries, develops, manufactures, and sells radiation detection and measuring equipment worldwide. The company operates through two segments, Optron and Overhoff. It offers radiation water monitors that allow the detection of radioactive materials in drinking water, ground water, rainfall, rivers, and lakes; alpha, beta, gamma, neutron, and Tritium monitors; DroneRAD aerial radiation detection; air and water monitors; and nano-second X-ray monitors. It also provides vehicle, personnel, exit, and room monitors; radon air monitors and radon switch products to determine the radon content in the air in basements, mills, mines, and buildings; handheld survey meters, as well as personal dosimeters and pocket micro-R meters; and port security equipment.