Features 【TESTING, DEBUGGING, AND MEASURING】: Together with the oscilloscope, can be used for testing and debugging of electronic circuits, testing and measuring the frequency characteristics and impulse response of audio amplifiers 【FOR OSCILLOSCOPE AND PROBE】: Square wave output, suitable for oscilloscope attenuator and probe pulse characteristic adjustment, etc. 【SCRATCH RESISTANT ABS】: Adopt good quality ABS material, possess impact resistance, scratch resistance, environmentally friendly 【SMALL AND PORTABLE】: Function signal generator module possess small size, complete functions, simple operation, easy to carry 【HIGH ACCURACY】: DDS possess good accuracy and frequency stability, suitable for oscilloscope sweep time factor calibration Specification: Item Type: Function Signal Generator Module Material: ABS Purpose: Signal sending and receiving Basic Parameters: Working Voltage: DC7-9V DDS Frequency Range: 1HZ-65534HZ Package List: 1 x Function Signal Generator Module Package List 1 x Function Signal Generator Module