Sine Wave Generator Resonator Adjustable frequency: 0.01 Hz to 100000 Hz (0.01 Hz to 100 kHz) for low to frequency testing with precise control. The default is 7.83 Hz, with preset options including 174 Hz, 285 Hz, 396 Hz, 417 Hz, 528 Hz, 639 Hz, 741 Hz, 852 Hz, 963 Hz, and more. Multiple waveforms: choose from sinusoidal, square, and inverted square wave to suit different testing needs and environments. Targeted applications: designed for laboratories and studios that require reliable, repeatable signal generation for calibration, testing, and analysis. Key benefits: wide frequency range, versatile waveform options, and straightforward control enable accurate testing and consistent results across experiments. Compatibility: intended to work with standard lab equipment and measurement workflows for signal analysis and device characterization. Use scenarios: Calibrating oscilloscopes, spectrum analyzers, and data acquisition systems. Testing audio equipment, amplifiers, and filters. Educational demonstrations and electronics experiments.