The Best Function Generators You Can Buy

It is essential to note that the function generators market has been flooded with waste and low-quality products. Finding a trustworthy one that will not be easily destroyed after use is difficult. You don’t want to spend your time, efforts and money on products that will soon get broken down and provide you with zero benefits.

The most effective way of dealing with these issues is using the best function generators available. We have checked out many in the market before coming up with our list of the top 10 best function generators that can give you impressive results.

Why should you trust us?

We’ve researched to find out which function generators is the best. We considered various factors, including quality, price and customer reviews. Our goal is to provide accurate information to make an informed purchasing decision. We’re passionate about helping you find the best function generators for your needs. For this reason, we’ve also included a buying guide to help you get the most out of your purchase. We hope you find this information useful and helps you make the right decision when shopping for function generators. To find the best function generators, we considered several different factors, including:

  • Functionality
  • Design
  • Build Quality
  • Material
  • Price Point
  • Value for the Money
  • Ease of Cleaning

If If you’re still unsure, keep reading. Here are the best function generators on the market right now:

Top 10 function generators: Editor’s Choice


Best function generators With Specifications

Before you buy the function generators, be sure you’ve done your due diligence. Do your research on different models. Read customer reviews and analyze their pluses and minuses. If a function generators is popular among consumers, find out why that is. This will help keep you from making a purchase that could have been avoided. You’ll also know if there are any issues with the product or manufacturer before you make your purchase.

Once you’ve narrowed your list down to a few products, read their reviews. You can find out if there are any issues with the product or if people have found ways around them. If you’re still unsure about what to get, check out forums for advice from other users.

Here’s a list of some questions you should ask yourself before you are ready to buy:

  • Durability- Does the product last?
  • Usage- How well can it be used?
  • Cleanliness- Is it easy to clean?
  • Safety- Are there any health hazards?
  • Customizability- How much variety is there in the product’s design and use?
  • Cost- How much does it cost?
  • Ease of Use- How straightforward is the product to use?
  • Appearance- How does it look and feel?
  • Quality of Materials- Are they durable or flimsy?
  • Features– What are the product’s features?
  • Value- Is the price worth it?

We rated each item based on expert tests to determine which is the champion. To do so, we devised multiple challenges to scrutinize each model’s power, portability, ease of use, and accessory organizational systems. Check out our in-depth review to discover which models best suit your specific needs.

1. 1HZ-500KHZ DDS Functional Signal Generator, Seesii DDS Function Low Frequency Signal Generator Sine/Triangle/Square/Sawtooth Waveform

Features :

  • 1HZ-500KHZ DDS signal generator is small but has many functions, easy to operate and carry. The power supply can be either AC/DC adaptor or a battery.
  • It can be used with oscilloscope to test and debug electronic circuit, the frequency response of audio amplifier and impulse response,It also can calibrate the sweep time factor of oscilloscope.
  • The square waveform is suitable for oscilloscope attenuator and the adjustment of probe impulse response.
  • Have a filter (can be opened and closed) to suit the output of sine wave and pulse wave.
  • This functional signal generator can test many kinds of wave forms such as: sine, square, triangle, positive and negative sawtooth waveform. It is especially designed for those professional worker.

Additional Info :

Color 1HZ-500KHZ
Item Dimensions
Height 1.968503935
Width 3.93700787
Length 5.118110231

2. Koolertron Upgraded 15MHz DDS Signal Generator Counter,High Precision Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 200MSa/s (15MHz)

Features :

  • Arbitrary Waveform Generator adopts large scale FPGA integrated circuit and high-speed MCU microprocessor. The internal circuit adopts the active crystal oscillator as the benchmark. So the signal stability is greatly strengthened.
  • Using Dual-channel DDS signal and TTL electric level output to generate precise, stable, low distortion output signal. includes Sine wave, Square wave, Triangle wave, Saw toothwave, Pulse wave, white noise, user-defined waveform etc. each channel can be independently set the parameters.
  • With linear sweep(Max. up to 999.9s) and logarithmic frequency sweep functions.Has a frequency measurement, period measurement, positive and negative pulse width measurement and counting function.
  • Storage feature: You can store 99 groups instrument state parameters set by the user, can be called up to Reproduce.The frequency output of Sine wave can be up to 15MHz. 200MSa/s sampling rate. It has 60 positions for saving user-defined waveform. Waveform Length of each one is 2048 and vertical resolution is 14 bits
  • This Signal Generator is the ideal instrument for electronic engineering, laboratories, production lines, teaching and scientific research.

Additional Info :

Item Dimensions
Weight 2.18

3. Signal Generator Kit, XR2206 Precise Function Signal Generator Frequency Module Signal Generator DIY Kit Sine Triangle Square Output Adjustable 1Hz-1MHz, 9-12V DC Input (1)

Features :

  • Good precision: the XR2206 function signal generator is precise, with a transparent case box shell for good assemble; Amplitude: 0-3V at 9V DC input; Distortion: less than 1% (at 1KHz); Flatness: +0.05dB 1Hz – 100kHz
  • Parameters: Voltage Supply: 9-12V DC Input; Waveforms: Square, Sine, Triangle; Impedance: 600 Ohm + 10%; Frequency: 1Hz-1MHz; Amplitude: 0-3V at 9V DC; InputDistortion: less than 1% (at 1KHz); Flatness: +0.05dB 1Hz – 100kaHz
  • Sine wave parameters:Amplitude: 0-3V at 9V DC input; Distortion: less than 1% (at 1KHz); Flatness: +0.05dB 1Hz – 100kHz
  • Square wave parameters: Amplitude: 8V (no load) at 9V DC Input; Rise Time: less than 50ns (at 1KHz); Fall Time: less than 30ns (at 1KHz); Symmetry: less than 5% (at 1KHz)
  • Triangle wave: Amplitude: 0-3V at 9V DC input; Linearity: less than 1% (up to 100 KHz) 10 mA

Additional Info :

Color Clear

4. Siglent Technologies SDG1032X Arbitrary Waveform – Function Generator

Features :

  • Country Of Origin : China
  • Square Waves To 30 Mhz
  • Dual Channel. Sweep/ Burst/ Modulation/ Harmonics
  • Ch1 – Ch2 Waveform Combining. Built-In Frequency Counter

Additional Info :

Item Dimensions
Height 11.6
Width 10.2
Length 4.2
Weight 9.700339528

5. ICQUANZX XR2206 High Precision Function Signal Generator DIY Kit Sine/Triangle/Square Output 1Hz-1MHz Adjustable Frequency Amplitude

Features :

  • High resolution, can generate sine/triangle/square waveforms.
  • Frequency range: 1Hz-1MHz.
  • Adjustable frequency and amplitude.
  • Frequency adjustment features coarse tuning and fine tuning.
  • Wide power supply range, use 9-12V external power or 9V battery(NOT Included).

Additional Info :

6. Signal Generator, DROK DC 3.3-30V Function Generator 5-30mA LCD Display PWM Pulse Frequency Duty Cycle Rectangular Wave Square Wave Signal Generator

Features :

  • PARAMETER —- operating voltage range DC 3.3v~30v; frequency range 1Hz-150kHz; output current 5-30mA; duty cycle range 0-100%.
  • APPLICATION —- as square wave signal generator for experimental development; as square wave signal generator for motor driver; as adjustable pulse generator for MCU; as pulse generator, control related circuits (PWM dimming, speed regulating).
  • SERIAL COMMUNICATION —- support serial communication, TTL level.
  • DATA AUTO STORAGE —- all parameters will be saved automatically after setting and therefore won’t lose when power off.
  • OTHER FEATURES —- with LCD display to display frequency and duty cycle value; with case; PWM output, can set frequency and duty cycle separately by buttons; frequency value is divided into 4 range and switched automatically, with high precision.

7. Signal Generator Module, Function Signal Generator 4-20mA 2-10V LCD Display PWM Pulse Adjustable Module Sine Wave Function Generator Module

Features :

  • MULTI-FUNCTION ADJUSTABLE —The multi-function signal generator kit supports multiple modes such as PWM mode, pulse mode, signal source mode, and sine wave mode. Signal source mode: voltage source 2-10V, current source 4-20mA, sine wave mode: 1-1000Hz.
  • CLEAR LED DISPLAY —Our signal generator has a bright and clear display screen and a simple control panel layout, which can be used to monitor the output current and voltage. You can easily switch the display simply by pressing the switch on the monitor.
  • STRONG LOAD CAPACITY —The signal load capacity of this sine wave generator module is strong, and the output current can reach 30mA (Note: This product outputs signal source and cannot directly drive high-power loads). The voltage, frequency, and duty cycle are adjustable in PWM mode.
  • WIDE APPLICATION —Our adjustable PWM pulse module/signal generator module can be used as signal generator, valve adjustment, inverter control, PLC debugging, panel debugging, LED test, analog transmitter output.
  • WARRANTY AND SERVICE — Customer satisfaction is our top priority. We provide you with 24-hour online customer service and a 180-day refund policy. If you have any dissatisfaction, you can unconditionally request a full refund. If you have any questions, please feel free to contact us.

Additional Info :

Item Dimensions
Height 0
Width 0
Length 0
Weight 0.1322773572

8. JDS6600 DDS Signal Generator Counter, 15MHz 30MHz 40MHz 50MHz 60MHz High Exactness Dua Channel Arbitrary Waveform Function Generator Frequency Meter 266MSa/s (15Mhz)

Features :

  • Exquisite Waveform: Vertical resolution of waveform is optimized to 14bit, 266MSa/s sampling rate, Sine wave frequency is optimized to 0.01uHz-60MHZ, square wave is 0.01uHz-15MHz, more exquisite waveform.
  • Exquisite Waveform: Vertical resolution of waveform is optimized to 14bit, 266MSa/s sampling rate, Sine wave frequency is optimized to 0.01uHz-60MHZ, square wave is 0.01uHz-15MHz, more exquisite waveform.
  • High Accuracy: Large scale integrated circuit and SMT technology, high reliability. Two channel phase difference adjustment is optimized to 0.1 degrees; the time delay is more accurate. Bias adjustment is optimized to -9.99V to +9.99V, more precise.
  • Waveform Characteristic: Sine, Square, pulse (adjustable duty cycle, precise adjustment of pulse width and period), triangular wave, partial sine wave, CMOS wave, DC level (set DC amplitude by adjusting offset), half wave, full Wave, positive staircase wave, anti-ladder wave, noise wave, exponential rise, exponential drop, multi sonic wave, Symplectic pulse and Lorenz pulse and 60 arbitrary waveforms
  • Easy to Use: It can use standard PC software to control all machine functions and draw arbitrary waveform, communication protocol publicity makes secondary development very simple. It has output short circuit protection, all signal output end can work for 60s under the condition of load short circuit.
  • Good Operation Fluency: 2.4-inch high-definition color LCD screen ensures good operation fluency, lots of shortcuts greatly simplifies the operation steps. Each function has independent operating interface, Glossy switch without pause.

Additional Info :

Item Dimensions
Height 2.755905509
Width 7.086614166
Length 7.480314953

9. Onyehn XR2206 High Precision Function Signal Generator DIY Kit Sine/Triangle/Square Output 1Hz-1MHz Adjustable Frequency Amplitude + Transparent Case Box Shell

Features :

  • High Precision, can generate sine/triangle/square waveforms.
  • Output frequency range: 1Hz-1MHz and Adjustable frequency and amplitude.
  • Wide power supply range, use 9-12V external power or 9V battery(NOT Included).
  • This is a DIY kit with All are through hole components,easily assemble the Function Generator by yourself.
  • Onyehn XR2206 High Precision Function Signal Generator DIY Kit Sine/Triangle/Square Output 1Hz-1MHz Adjustable Frequency Amplitude + Transparent Case Box Shell

Additional Info :

10. HiLetgo 2pcs ICL8038 Monolithic Function Signal Generator Module DIY Kit Sine Square Triangle

Features :

  • ICL8038 Monolithic Function Signal Generator Module DIY Kit
  • Frequency range: 50-5KHz,
  • Input: 12V DC
  • Model: ICL8038
  • uniform voltage is + VCC / 2

Additional Info :

Color Blue

Buying function generators: Things to Consider

Purchasing the right products and services can be difficult, especially if you don’t know what to look for. A buying decision should never be taken lightly. First, you have to decide what you need, then which of the many available products will suit you best. It’s not enough to just visit a store, read some reviews and buy the product that looks best. That could be a recipe for spending too much money on an unsuitable item. When you need a product or service that works, consider several things before buying.

Below is a list of things to consider when buying a function generators:

  • Design: The product’s design is important, as it will determine your comfort when using it.
  • Durability: You want a product that will last for years instead of breaking down on you after a few months.
  • Price: You should consider the product’s price, especially if you are on a budget.
  • Safety: You want a product that is safe to use, especially if you have children around.
  • Performance: You want a product that performs well and completes the job efficiently.
  • Warranty: The warranty is important for any product, as it ensures that you can get repairs or replacements if something goes wrong.


We’ll discuss in more detail:


The first thing to consider is what features you need. Do you need something that will last a long time? Or are you looking for something more affordable? Think about how often you’ll use the function generators and how much use it will get. This will help guide your decision on which one to buy.

If you want something durable, look for function generators that offers warranties and guarantees. They might cost a little more upfront, but they’ll save money in the long run if something goes wrong with the product.

If you’re looking for something more affordable, consider buying a function generators with fewer features. These products tend to be cheaper. They might not last as long either, but if you’re just looking for something to get by with temporarily, this option is worth considering.


The product’s design is one of the most important factors before buying it. You should always look for a function generators designed according to your needs and requirements. The design should be user-friendly and easy to use. In order to ensure that you get the best quality function generators with maximum features, you should go through the reviews on various websites and blogs where people have shared their experiences after using the product. By doing this, you will get an idea about what kind of design is available in the market and how reliable these designs are.


The next thing you need to consider before buying function generators is its cost. Cost varies from one product to another depending upon its brand name and quality. The more expensive products tend to be high-quality products. In contrast, low-quality products tend to be cheaper than expensive ones because they do not offer optimum performance compared to expensive ones. So when it comes down to choosing between two similar products but different prices, always choose the one that offers better quality at a reasonable price.


The product’s durability is another important factor to consider when buying. A durable function generators will last longer, making it worth every penny spent. Make sure that your chosen product has been tested out thoroughly before deciding on whether or not to buy it or not. A great product can last long, even with regular use. If you buy a product that is not durable and breaks down easily or quickly after using it, then you’re wasting your money on something that’s not worth it.

It’s also important to note that a durable product helps you get the most out of your money but also helps the environment. If a product lasts longer, fewer products need to be produced, resulting in less waste and pollution.

Ease of use

If you don’t know how to use your function generators or if there are too many steps involved in putting it together or using it for its intended purpose, then chances are that item isn’t going to get much use from you at all — or at least not for very long! So make sure that any new item you purchase will be easy to use and understand. If you have to read the instructions and then try it out for a while before you get the hang of it, then it’s probably not worth your money.

Customer Support

Customer support is very important if you face any issues using the function generators. It will help you in resolving all your queries related to the product. Some companies offer 24/7 customer support service, while others offer support only during office hours. You need to check the type of customer support the company provides before buying its products online.


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