10 Best Signal Generators With Frequency Counter in 2026 for Precise Bench Testing

Choosing among signal generators with frequency counter can be difficult when specifications, waveform options, channel layouts, and interfaces vary widely. The right model should match your required frequency range, measurement accuracy, and testing workflow.

This roundup compares 10 capable options, from compact low-frequency DDS units to higher-bandwidth dual-channel generators with arbitrary waveform support and USB connectivity.

Best 10 Signal Generators with Frequency Counter Picks for 2026

Best Precision Pick – Seesii 60MHz Dual-Channel DDS Generator

For shoppers comparing signal generators with frequency counter capability, the Seesii JDS6600 combines dual-channel DDS output with measurement functions in a compact instrument. It offers up to 60MHz sine-wave output, 200MSa/s sampling, adjustable channel settings, and multiple waveform types.

Best For: Electronics labs, teaching, production-line testing, and users who need programmable waveform storage with built-in frequency and pulse measurements.

Pros:

• Dual-channel output with independently adjustable parameters and 0.1% duty-cycle precision.
• Includes frequency, period, pulse-width, and counting measurements.
• Stores up to 99 instrument-state setups and 60 user-defined waveforms.
• Supports linear and logarithmic sweeps, with sine output up to 60MHz.

Cons:

• Its 1kg weight is higher than that of the miniature FG-100.
• Advanced custom-waveform features may be more than beginners need.

The Seesii is a well-rounded choice when measurement features, dual-channel flexibility, and repeatable saved setups matter as much as waveform generation.

Best Value Starter – UNI-T UTG962E Arbitrary Waveform Generator

The UNI-T UTG962E is a practical option for buyers seeking signal generators with frequency counter functionality without a highly complex setup. Its dual-channel design, 1μHz–60MHz output range, 200MSa/s sampling rate, and included cables suit everyday bench work.

Best For: Hobbyists, students, small labs, ham-radio alignment, audio measurements, and basic circuit troubleshooting.

Pros:

• Built-in six-digit frequency counter with TTL compatibility.
• Dual channels support combining CH1 and CH2.
• Offers sine, square, pulse, ramp, noise, DC, and arbitrary waveforms.
• Includes power adapter, USB cable, power cord, BNC cable, and BNC-to-alligator cable.

Cons:

• Provides 24 groups of arbitrary-waveform storage, fewer than some competing models.
• The supplied notes do not specify a maximum amplitude or detailed measurement modes beyond the counter.

With its intuitive positioning and useful accessory bundle, the UTG962E makes a sensible entry point for general-purpose signal generation and frequency checking.

Best High-Frequency Choice – Koolertron 80MHz DDS Counter

Among signal generators with frequency counter features, the Koolertron stands out with up to 80MHz sine-wave output and 275MSa/s sampling. It adds dual-channel DDS generation, mobile-app control, PC waveform tools, and frequency, period, pulse-width, and counting measurements.

Best For: Advanced hobbyists, engineers, and labs that want higher-frequency output plus computer or phone-based waveform control.

Pros:

• Highest listed sine-wave output in this roundup at 80MHz.
• 275MSa/s sampling and 14-bit vertical resolution support detailed waveform work.
• Mobile app and PC software enable instrument control and arbitrary-waveform import or export.
• Stores 100 instrument-state setups and supports linear or logarithmic sweeps.

Cons:

• At 3.12 pounds, it is less lightweight than the compact options.
• App and PC features may add setup complexity for simple testing.

The Koolertron is the strongest fit when bandwidth, custom waveform development, and remote control are priorities rather than minimal size or simplicity.

Best Compact Option – FG-100 Portable DDS Signal Generator

The FG-100 is a small, battery-capable choice for signal generators with frequency counter-style testing needs. It provides sine output from 1Hz to 500kHz, square, triangle, and sawtooth outputs, plus adjustable amplitude and DC offset for oscilloscope and circuit work.

Best For: Portable troubleshooting, oscilloscope calibration, probe and attenuator checks, and basic electronic circuit testing.

Pros:

• Very compact at 7 ounces and can run from a DC adapter or 3.7V lithium battery.
• Provides sine, square, triangle, and sawtooth waveforms.
• Offers up to ±10V peak-to-peak output and adjustable DC offset.
• DDS accuracy and frequency stability suit oscilloscope time-base calibration.

Cons:

• Its 500kHz maximum sine frequency is much lower than the other listed generators.
• The supplied notes do not describe a dedicated built-in frequency-counter measurement mode.
• Square, triangle, and sawtooth outputs are specified only to 20kHz.

The FG-100 favors portability and straightforward signal output, making it useful for field kits and basic bench checks rather than advanced dual-channel waveform development.

High-Capacity Pick – Koolertron 60MHz DDS Signal Generator

If you need signal generators with frequency counter functionality and broad waveform flexibility, the Koolertron 60MHz DDS Signal Generator is a capable dual-channel option. It supports sine output up to 60MHz, 200MSa/s sampling, independent channel settings, measurement functions, and extensive waveform storage.

Best For: Electronics labs, engineering work, production testing, teaching, and research requiring dual-channel generation and higher-frequency sine output.

Pros:

• Generates sine, square, triangle, sawtooth, pulse, white noise, and user-defined waveforms.
• Includes frequency, period, pulse-width, and counting measurements.
• Offers linear and logarithmic sweeps, with linear sweep times up to 999.9 seconds.
• Stores up to 99 instrument-state setups and 60 user-defined waveforms.

Cons:

• Its larger feature set may be more than needed for basic waveform generation.
• The supplied notes do not specify the frequency-counter measurement limit.

Choose this model when maximum stated sine-wave frequency, dual-channel control, and generous storage matter more than keeping the instrument minimal.

USB-Connected Choice – YERTAI ET3320C 20MHz Function Generator

The YERTAI ET3320C combines a 20MHz DDS function generator with a stated 100MHz high-precision frequency counter. Its dual channels, USB communication, graphic display, and arbitrary-waveform support make it a practical choice for bench work where connectivity and counter capability are priorities.

Best For: Users who want a compact dual-channel generator with USB communication, modulation functions, and a higher-rated frequency counter.

Pros:

• Includes a 100MHz high-precision frequency counter and 32-bit counter.
• Provides five basic waveforms and 32 arbitrary waveforms.
• Supports internal and external ASK, FSK, and PSK modulation.
• Includes USB device communication and software for arbitrary-waveform editing.

Cons:

• Maximum stated generator frequency is 20MHz.
• The waveform-editing software must be obtained from the manufacturer.
• Stores 50 customized waveform sets, fewer than some higher-capacity models.

This is a strong fit if the frequency counter specification and USB workflow are more important to you than the generator’s maximum output frequency.

Compact Measurement Pick – Koolertron 25MHz DDS Generator

For buyers seeking signal generators with frequency counter features in a more moderate-frequency package, this Koolertron DDS model provides dual-channel output up to 25MHz. It also adds frequency, period, pulse-width, and counting measurements, plus sweep functions and TTL output for general electronic testing.

Best For: Electronics engineers, educators, labs, and production environments needing dual-channel generation and built-in parameter measurements.

Pros:

• Supports independent dual-channel settings and TTL output.
• Measures frequency, period, positive and negative pulse width, and counts signals.
• Provides linear and logarithmic frequency sweeps.
• Offers 16 user-defined waveform slots and 10 instrument-state memories.

Cons:

• Its 25MHz sine-wave limit is lower than the 60MHz Koolertron model.
• Storage is limited to 10 instrument-state setups.
• The vertical resolution is stated as 12 bits.

This model makes sense for routine bench and teaching applications where dual-channel control and measurement tools are useful but 60MHz output is unnecessary.

Compact Dual-Channel Pick – SEESII 15MHz DDS Signal Generator Counter

If you need signal generators with frequency counter functionality for bench testing, teaching, or light production work, the SEESII JDS6615 combines two independently configurable channels with measurement tools in a compact enclosure. It provides sine output up to 15MHz, 200MSa/s sampling, waveform storage, and frequency, period, pulse-width, and counting functions.

Best For: Beginners, electronics labs, and users who want a portable dual-channel generator with built-in measurement features.

Pros:

• Dual channels can be configured independently, including separate duty-cycle adjustment.
• Supports sine, square, triangle, sawtooth, pulse, white-noise, and user-defined waveforms.
• Stores up to 99 instrument states and 60 user-defined waveforms.
• Includes linear and logarithmic sweep functions, plus frequency and pulse measurements.

Cons:

• Sine-wave output is limited to 15MHz.
• Its listed measurement input settings allow up to 20 volts, so higher-voltage signals are not covered by the supplied specifications.

The SEESII is a practical entry-level option when portability and waveform flexibility matter more than high-frequency output. Its saved presets and included software support repeatable testing without requiring a computer during use.

High-Bandwidth Connected Pick – Koolertron 60MHz DDS Signal Generator Counter

Among signal generators with frequency counter capability, the Koolertron 60MHz model stands out for its higher stated frequency range and computer or mobile control. It offers dual-channel DDS output, 275MSa/s sampling, 8192-point waveforms, and a 14-bit vertical resolution for more demanding waveform-generation tasks.

Best For: Users who need higher-frequency output, extensive arbitrary-waveform control, and remote operation from a phone or PC.

Pros:

• Provides dual independently configurable channels with sine, square, triangle, sawtooth, pulse, white-noise, and custom waveforms.
• Supports sine-wave output up to 80MHz according to the supplied specifications.
• Mobile-app control supports viewing data, changing functions, and importing or exporting arbitrary-waveform data.
• Includes PC software, communication protocol support, sweep functions, frequency measurement, pulse-width measurement, and counting.

Cons:

• The larger listed package and 3.03-pound weight make it less portable than the compact 15MHz options.
• Remote-control features require downloading the app or using the supplied PC software and protocol.

This is the strongest choice in the group for users prioritizing bandwidth and waveform depth. Its 80MHz sine-wave specification, 8192-point waveform length, and remote-control options make it better suited to advanced bench workflows than basic standalone testing.

Value 15MHz Bench Pick – Koolertron Dual-Channel 15MHz DDS Generator

This Koolertron model is a straightforward option for shoppers comparing signal generators with frequency counter functions at the 15MHz level. It combines dual-channel DDS output, TTL output, arbitrary-waveform support, sweep modes, and frequency, period, pulse-width, and counting measurements.

Best For: Electronics students, laboratories, and bench users who want broad waveform support without moving beyond a 15MHz sine-wave range.

Pros:

• Each of the two channels can be configured independently.
• Offers common waveforms plus white noise and user-defined waveforms.
• Stores 99 instrument states and provides 60 positions for custom waveforms.
• Uses a 200MSa/s sampling rate with 2048-point waveforms and 14-bit vertical resolution.

Cons:

• Sine-wave output is limited to 15MHz.
• It lacks the mobile-control and higher-bandwidth features listed for the 60MHz Koolertron model.

The 15MHz Koolertron offers a balanced feature set for general-purpose signal work. It is a sensible fit when dual-channel operation, saved setups, and built-in measurement functions are more important than maximum frequency.

How We Picked the Best Signal Generators with Frequency Counter

We focused on the specifications that matter most during practical electronics testing: maximum frequency, supported waveforms, frequency-counter functionality, channel count, sampling performance, display usability, and connectivity. We also considered whether each unit suits basic bench work, classroom experimentation, repair tasks, or more demanding signal-development projects.

Because product capabilities vary considerably, a higher frequency rating does not automatically make one generator better for every buyer. A lower-cost model may be the smarter choice when you primarily need sine, square, or sawtooth signals within a modest range.

Quick Comparison

What to Compare	Why It Matters
Maximum frequency	Determines the highest-frequency signals you can generate or evaluate.
Waveform selection	Indicates whether the unit supports standard and arbitrary waveform testing.
Channels	Dual-channel models can generate related or independent signals simultaneously.
Counter function	Helps measure an external signal’s frequency without using a separate counter.
Connectivity	USB or computer communication can simplify remote control and repeatable testing.

Key Buying Factors for Signal Generators with Frequency Counter

Frequency Range and Accuracy

Choose a frequency range that comfortably exceeds your normal testing needs. Extra headroom is useful, but confirm that the generator maintains acceptable accuracy and resolution across the range rather than focusing only on the headline maximum.

Waveforms and Arbitrary Output

Standard sine, square, triangle, and sawtooth outputs cover many repair and educational tasks. Arbitrary waveform capability is more valuable when you need to reproduce sensor signals, modulation patterns, custom pulses, or unusual test profiles.

Single or Dual Channel

Dual-channel Signal Generators with Frequency Counter can support two simultaneous outputs, frequency comparison, phase-related testing, or separate stimulus and reference signals. If you only generate one basic waveform at a time, a single-channel design may save money and bench space.

Controls, Display, and Connection

A clear LCD, direct controls, fine frequency adjustment, and stable amplitude settings make repeated measurements easier. USB communication is worth prioritizing if you plan to automate tests or save configurations.

Who Should Buy Which Signal Generators with Frequency Counter?

For general bench work: Choose a midrange DDS generator with dual channels, standard waveforms, and a built-in counter.

For higher-frequency testing: Prioritize the 60MHz and 80MHz options, while checking output-amplitude limits and waveform performance at the upper end.

For custom signal development: Select a model with arbitrary waveform support, stronger sampling performance, and computer connectivity.

For basic education or repair: A compact 15MHz to 25MHz unit can provide the essential functions without unnecessary cost or complexity.