Feature:1. Great Control: This machine can generate square wave pulse frequency signal, which enables easy control on equipment.2. Stable Output: PWM output, the frequency and duty cycle can be set independently. Also supports serial communication.3. Clear Display: Digital display ensures clear viewing on the date, making the operation and adjustment more convenient.4. Broad Utility: Allows for wide application in experiment, motor driving, MCU, PWM controller and so on, very useful.5. Simple to Use: Has locking function, can also automatically save all the data after setting, and many other functions.Specification:Item Type: Frequency GeneratorMaterial: ABS, PCBWorking Voltage: DC 3.6V-36V, input anti reverse connection protection. Maximum Current: 20mA 36VWorking Frequency: 1Hz-150KHz adjustable. Duty Cycle: 0-100 percent , 0.1 percent adjustable within 15KHz. 1 percent adjustable above 15KHzDisplay: 5 digit high brightness digital tube display. Communication: Supports serial communication, which requires serial board, provides serial communication protocol. .Package List:1 x Frequency Generator4 x Screw