Key features precision signal generator: This DIY kit with shell can produce sine waves, triangular waves, and square waves with accuracy and stable output. Adjustable frequency and amplitude: Frequency can be set from 1 Hz to 1 MHz, and the output amplitude is adjustable to suit your circuit. Five levels of frequency accuracy with coarse and fine adjustments: Allows precise control over the signal output. Wide power options: Compatible with an external 9–12 V DC power supply or a 9 V battery for portable use. Technical specifications and compatibility Waveforms: sine, triangular, and square waves Frequency range: 1 Hz to 1 MHz Amplitude: adjustable Power supply: external 9–12 V DC or 9 V battery Form factor: DIY kit with a shell Practical use scenarios Bench testing and calibration of microcontroller interfaces, ADCs, and DACs Audio electronics work such as testing amplifiers, filters, and signal path integrity Educational labs and hobbyist experiments where multiple waveforms and precise timing are needed Why this kit stands out Combines a versatile waveform generator with a compact, DIYfriendly shell for handson learning and practical testing Broad frequency range and adjustable amplitude support a wide variety of circuits and projects Clear coarse and fine frequency control enables precise signal tuning Flexible power options facilitate both fixed bench setups and portable field work