- Professional oscilloscope measurement tool delivering a 7.83 Hz standard sinewave; the waveform is real and stable for accurate testing. - In addition to outputting 7.83 Hz Schumann Wave, it provides programmable frequency modulation with adjustable frequency from 0.001 Hz to 200 kHz. - Built with high quality materials to ensure precise frequency stability under use. - Digital circuit crystal oscillator frequency reference offers enhanced stability and strong anti interference performance. - Suitable for lab setups requiring accurate low to high frequency sine waves and reliable signal generation; compatible with standard test equipment. - Use scenarios: - Schumann resonance research and educational demonstrations requiring controlled 7.83 Hz output. - Sensor calibration, EMC/EMI testing, and signal integrity experiments needing a stable, tunable sine source. - R&D environments that implement frequency modulation experiments across a wide range of frequencies.