Tested and Working. Does not come with antennas or Power Cord. This Optoelectronics Cub Frequency Counter MiniCounter is a reliable tool for measuring frequency in a variety of settings. The unit type is a single unit, and the brand is Optoelectronics. This frequency counter is ideal for use in testing, measuring, and inspecting various electronic systems. It comes without an antenna or power cord, making it a versatile option for those who may already have these components.