Features High accuracy: DDS have good accuracy and frequency stability, suitable for calibrating the oscilloscope sweep time factor. TEST, DEBUGGING AND MEASURE: Can be used together with the oscilloscope for testing and debugging electronic circuits, testing and measuring the frequency characteristics and the pulse response of audio amplifiers. For oscilloscope and probe: rectangular wave output, suitable for oscilloscope attenuation and adjustment of probe pulse characteristics, etc. Small and portable: the function signal generator module has a small size, full functions, easy operation and is easy to carry. Anti-scratch ABS: adopt high-quality ABS material, possess impact resistance, scratch resistance, environmentally friendly. Specification: Element type: function signal generator module. Material: ABS Purpose: send and receive signals Basic parameters: Operating voltage: DC7-9V. DDS Frequency Range: 1Hz-65534Hz Package list: 1 x function signal generator module Package List 1 x Function Signal Generator Module