Best Function Generators of 2025

The Siglent Technologies SDG1032X is a dual-channel function generator with a frequency range up to 30 MHz that can produce square waves. It features sweep, burst, modulation, and harmonic capabilities, and allows for combining waveforms between channels. Additionally, it has a built-in frequency counter.

The Siglent Function Generator offers dual-channel capabilities with a frequency range of up to 40 MHz, ideal for generating various signal types. Its touch screen display makes it easy for you to navigate through functions and settings, enhancing your user experience. With 16-bit vertical resolution, you can achieve precise waveform outputs, ensuring accuracy in your projects. Additionally, the built-in high precision frequency counter allows you to measure frequencies accurately, making it a great tool for testing and experimentation.

The Weewooday Signal Generator Kit is designed for precision and versatility. With a wide frequency range of 1Hz to 1MHz, you can easily generate various waveforms including sine, square, and triangle. This versatility allows you to tailor your signal output for different applications, whether in educational settings or for personal projects. The kit boasts low distortion rates and excellent amplitude control, ensuring high-quality signal generation. Additionally, the transparent case makes assembly straightforward, allowing you to see the inner workings while you build. This combination of features provides a reliable tool for both beginners and experienced users alike.

The Koolertron Upgraded 15MHz DDS Signal Generator Counter is a high-precision dual-channel arbitrary waveform function generator with a frequency meter. It features a large scale FPGA integrated circuit and high-speed MCU microprocessor for enhanced signal stability. The generator uses dual-channel DDS signal and TTL electric level output to produce precise, stable, and low distortion output signals, including sine wave, square wave, triangle wave, sawtooth wave, pulse wave, white noise, and user-defined waveform. It also has linear and logarithmic frequency sweep functions, frequency and period measurement, positive and negative pulse width measurement, counting function, and 99 groups of instrument state parameter storage that can be reproduced. With a frequency output of up to 15MHz and 200MSa/s sampling rate, this signal generator is ideal for electronic engineering, laboratories, production lines, teaching, and scientific research.

The DOMINTY Function Generator is designed for intuitive use with its 2.4-inch color display, making it easy for you to operate. It employs advanced Direct Digital Synthesizer (DDS) technology, ensuring that the signals generated are stable, precise, and low in distortion. With improved interference immunity, this generator features a 14-bit D/A converter that minimizes output errors, enhancing your projects' accuracy. Additionally, its versatile sweep function allows you to adjust frequency, amplitude, and duty cycle, providing you with flexibility in your experiments and applications.

The Seesii FG-615 is a versatile dual-channel signal generator that boasts enhanced signal stability thanks to its advanced FPGA and MCU technology. You can easily store up to 99 custom waveform settings, making it convenient to reproduce your preferred configurations whenever needed. The generator delivers precise and low-distortion output for various waveforms, including sine, square, and triangle waves. Additionally, it features a frequency meter that allows you to measure frequencies and pulse widths accurately. This combination of features makes the FG-615 a valuable tool for both beginners and professionals in electronics.

The Rigol DG1022Z is a versatile waveform generator that offers high signal fidelity, ensuring you can replicate waveforms with 100% accuracy. With a generous 2 million points for arbitrary waveform length, you can create complex signals tailored to your needs. The device features two independent channels, allowing you to generate multiple signals simultaneously, which is perfect for testing and experimentation. Additionally, it boasts impressive frequency stability and low phase noise, making it ideal for precise applications. This means you can rely on consistent performance for your projects.

The Seesii DDS Signal Generator is a compact device packed with features that make it user-friendly and versatile. It can operate on both AC/DC power or batteries, so you can use it anywhere. When paired with an oscilloscope, it helps you test and fine-tune electronic circuits and audio amplifiers. The generator produces various waveforms including sine, square, triangle, and sawtooth, providing flexibility for your projects. Additionally, it has a filter option to refine the output of sine and pulse waves, enhancing your testing experience.

The UNI-T UTG932E 30MHz Function Generator is a versatile dual-channel signal generator that offers a wide range of output waveforms including sine, square, pulse, ramp, noise, DC, and arbitrary. With modulation types such as AM, FM, PM, FSK, Line, and Log, this function generator allows for flexible signal manipulation. The 24 groups non-volatile arbitrary waveform generator storage and multi-language menu make it easy to operate. The 4.3 inches TFT LCD screen provides a clear display of the settings and waveforms. Whether you need to generate specific waveforms for testing or perform modulation experiments, the UNI-T UTG932E 30MHz Function Generator is a reliable tool that offers convenience and accuracy.

The EastTester Function Generator features a 2.4-inch TFT LCD screen that displays a clear graphical interface, making it easy for you to navigate its functions. With a waveform sampling rate of 200MSa/s and a length of 8192 points, you can create precise and detailed waveforms for your projects. It also allows you to store up to 50 user-defined waveforms, providing great flexibility for experimentation. Additionally, the dual-channel output supports independent operation with phase synchronization, enabling you to generate complex waveforms effortlessly.