This CES RF Signal Generator, made in Japan, is a reliable and high-quality unit that works great and is very nice and clean. It is a perfect addition to any business or industrial setting and is ideal for use in signal sources and conditioning, as well as in test, measurement, and inspection. With a frequency range of 100-450 MHZ, this unit is perfect for a variety of applications. The unit quantity is one, making it a great choice for those in need of a single unit. The brand, Leader, is known for its high-quality products and this signal generator is no exception.