Feature: 1. HIGH ACCURACY: DDS possess good accuracy and frequency stability, suitable for oscilloscope sweep time factor calibration 2. SMALL AND PORTABLE: Function signal generator module possess small size, complete functions, simple operation, easy to carry 3. 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 4. FOR OSCILLOSCOPE AND PROBE: Square wave output, suitable for oscilloscope attenuator and probe pulse characteristic adjustment, etc. 5. SCRATCH RESISTANT ABS: Adopt good quality ABS material, possess impact resistance, scratch resistance, environmentally friendly 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