precision signal generator capable of producing sine waves, triangular waves, and square waves with a selectable amplitude. Frequency range spans from 1 Hz to 1 MHz, with an adjustable frequency amplitude. Five accuracy resolution settings provide coarse and fine tone frequency adjustment, enabling precise control. Wide power supply range allows operation from an external 912 V DC supply or a 9 V battery, offering flexibility for different usage scenarios. Simple installation and debugging built around directinsert components, requiring minimal parts and a straightforward assembly and troubleshooting process for users. Key benefits and why you need it Versatile waveform output: supports sine, triangular, and square waves for a wide range of testing, calibration, and educational tasks. Precise control: five resolution settings help you dial in the exact frequency you need, improving test accuracy and repeatability. Flexible power options: works with common bench power supplies or a 9 V battery, reducing setup constraints in diverse environments. Easy setup: designed for directinsert components, minimizing assembly effort and simplifying debugging. Use scenarios Bench testing and debugging of analog and digital circuits, from amplifiers to filters. Microcontroller projects and sensor interfacing that require reliable reference waveforms for testing and calibration. Educational demonstrations and lab experiments to illustrate waveform behavior and signal integrity. Notes The description stays aligned with the original product's capabilities: DIY signal generator, sine/triangle/square waves, 1 Hz–1 MHz, adjustable amplitude, five accuracy resolutions, 912 V DC external supply or 9 V battery, and straightforward assembly with directinsert components.