The CF-4210Z and CF-4220Z are single-channel FFT analyzers that are equipped with a range of basic functions. The jog/shuttle cursor, a wheel that combines the functions of a rotary knob and a shuttle cursor, provides easy menu window setup operation. The CF-4210Z/4220Z FFT analyzers can be used as OK/NG judgment machines on production lines simply by installing the comparator output card that is available as an option. The incorporation of a 6.4-inch LCD screen has enabled a considerable reduction in device weight (a reduction of 30% when compared with the previous models, CF-4210A/4220A)