F388A is a wave form checker integrated with a voltage / current output type sensor that can display physical quantities such as pressure, load and torque in waveforms. It is able to visually capture in waveforms the fluctuations in physical quantities which are difficult to capture by only numerical values. With a 4000 times per second for high-speed processing, it is also ideal for narrow value fluctuations and comes equipped with a HI/LO limit comparison function, various hold functions and judgment function. F388A can be used in a wide-range of applications such as in control systems used in production control, automatic devices or testers.