Brightwin Frequency PWM Generator module or square wave pulse signal generators simulators can generate duty cycle adjustable 0-1kHz, 0-5kHz, 0-10kHz, etc frequency signal or pwm signal. It outputs frequency signal for PLC, DCS calibration, meters and sensors signal simulation, transmitters signal simulation, motor controlling, etc. And output frequency signal displays in the LCD or LED screen clearly. With standard panel-mounted shell or pcb circuit board, it is easy for user to do DIY or do further integration or to carry and use in industrial site. The PWM frequency generators are ideal for developers to do further development and design prototypes in the lab.