Description: Technical Specification: Working voltage: 3.3-30V; Output current: 5-30mA; Duty cycle range 0-100%. Frequency Range: Normal adjustment : 1Hz-150KHz, Fine adjustment : 1Hz-15KHz. Frequency accuracy: The accuracy of each range is about 2%. The frequency and duty cycle are clearly displayed on the LCD screen; the frequency and duty cycle are set separately by using the encoder potentiometer; it has a locking function to prevent misoperation. With ON/OFF button control signal output. Support serial communication, TTL level. Used as a square wave signal generator to generate square wave signals for experimental development; used to generate square wave signals to control motor drivers; output adjustable pulses for microcontroller use; output adjustable pulses to control related circuits (PWM dimming speed, etc. application). Specification: Material:Plastic Size Chart: 71x39x25mm/2.80x1.54x0.98inch Package Includes: 1x PWM Signal Generator Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!