US Nuclear Corp., together with its subsidiaries, engages in the developing, manufacturing, and selling radiation detection and measuring equipment worldwide. It operates through two segments, Optron and Overhoff. The company offers radiation water monitors that allow the detection of radioactive materials in drinking water, ground water, rainfall, rivers, and lakes; alpha, beta, gamma, and neutron 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. In addition, the company offers software, which measures gamma and neutron radiation levels; airborne radioactivity levels; temperature and humidity in the facility; status of security doors; wind speed and direction; and barometric pressure. Its products and services are used in nuclear reactor plants, universities, local and state hospitals, government agencies, and emergency medical technicians/first responders, as well as in airports, cargo, screening as ports and borders, and other critical infrastructure. The company is headquartered in Canoga Park, California.