Computer Signal Generators of 2025
Best Choice1
Seesii18% OffProfessional Upgraded DDS Signal Generator Counter, Seesii 60MHz LCD Display High Precision 200MSa/s Dual-Channel Arbitray Waveform Function Generator Frequency Meter
8.7 Simple to use8.2 Precision8.0 DurabilityWhy we love it
Enhanced signal stability with advanced FPGA and MCU.
Stores 99 custom settings; user-friendly software included.
Precise, low-distortion output with multiple waveform options.
9.8Exceptional
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Value for Money2
GenericGeneric FY6900 DDS Signal Generator, 60MHz Frequency Meter Counter, 250MSa/s Double Channel Function Generator, Arbitrary Waveform, High Precision, LCD Display with Graphics
Main highlights- Signal generator can sweep 4 properties of signals (frequency, amplitude, offset and duty cycle), and has 2 sweep types (linear and logarithm), sweep time of 0.01S~999.99s, and up/down/roundtrip sweep directions
- Signal generator can be used independently or controlled via computer host software, providing 3 windows - waveform window, text window, and control window
- Function generator has a built-in high D/A converter chip to provide high anti-interference, sampling rate of 250MSa/s, vertical resolution of 14bits
- Frequency generator features a 2.4” TFT color LCD display to show parameters and graphics of the two channels at the same time
- DDS-based signal generator (Direct Digital Synthesizer) offers high stability, high precision, and low distortion
9.7Exceptional
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3
ComimarkComimark 2Pcs VGA Signal Generator LCD Display Tester 7V-12V Power Input
Main highlights- We highly appreciate all customers opinions to improve the selling, also if anything you unsatisfied, please contact us for probable best solution.
- Resolutions:640*480 800*600 1024*768 1280*1024,With frequency switch and image switching button(All are independent micro switch control).
- Package Included: 2Pcs VGA Signal Generator LCD Display Tester 7V-12V Power input(If the number of products received is incorrect, please contact us . we will refund or give you a replacement).
- Main chip dual in-line with a socket, ideal for electronics enthusiasts upgrade or replace the chip.
- Application: LCD monitor, LCD TV.
9.6Exceptional
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4
Seesii1Hz-500kHz DDS Signal Generator with Schumann Resonator, Portable Multifunction Waveform Generator with AC/DC Power, Ideal for Oscilloscope Calibration, Audio Testing, and Stress Relief
Why we love it
Portable with dual power options.
Versatile waveform generation.
Includes stress-relieving Schumann resonator.
9.3Excellent
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5
TKXEC0.01Hz-500kHz DDS Signal Function Generator 7.83HZ Schumann Resonator Frequency Generator Portable Multifunction Waveform Generator,Ideal for Oscilloscope Calibration,
Why we love it
Versatile waveform generation for various needs.
Compact and easy to carry.
Affordable and user-friendly.
9.2Excellent
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6
FNIRSIFNIRSI SG-003A Signal Generator - 0-24mA 0-24V Current Voltage Adjustable Analog Simulator, Preset Value, Real-time Curve, Historical Record, Multiple Signal Programmable Function Generator
Main highlights- 【Signal Conversion】FNIRSI SG-003A signal generator can convert input signals into an output signal, and converted into different physical quantities. The input signal is converted into a current signal, and the input range is 0-1000 hz into 4-20 mA
- 【Real-time Curve】The change trend of input and output signals can be displayed by drawing a curve, and the sampling time of the curve can be set.The current-voltage analog simulator can also adjust the curve within the range of the max and min values
- 【Preset Value & Output】FNIRSI SG-003A supports 4 groups of signal values can be preset and the output function of continuously changing the size according to the setting parameters, and can select three modes: monotonous rise, fall and cycle
- 【Physical & Engineering】Signals are displayed as physical or engineering (ie pure quantity) values. For example: the current signal of 4-20 mA corresponds to 0-100, that is 4 mA corresponds to 0, 12 mA corresponds to 50, and 20 mA corresponds to 100
- 【Multiple Port Signal Generator】The Blue (IN-) is an alternate and it is also an input port that can be switched to a 24 V test power supply. Red(OUT) and black(COM) form an output port. Yellow(IN+) and Blue(IN-) form the input port
9.1Excellent
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7
MokxihitUpgraded RF Signal Generator 35MHz-4400MHz Signal Source Frequency Screen kit SG-A9
Main highlights- Wide Frequency Range: 35Mhz-4400Mhz, making it suitable for a variety of applications.
- Wave From: Sine Wave, it is Not strictly Wave with some noise wave. Power: about 1mw.
- Power off memory: When the power is off, the parameters will be saved and will continue to work at the previous frequency after being powered on again.
- Dual Modes: Single Frequency and Sweep mode, provide greater flexibility.
- Convenient Power Supply: Powered by a mobile charger or Power bank or usb connecting to a computer.
8.9Very Good
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8
N\PLB78 Current Voltage Signal Generator, 4-20mA /0-10V/mV Signal Source Calibrator Tester, LCD Display
Main highlights- 【Special design】Rational key layout, all functions have independent corresponding keys, which are easily to be operated. Fast speed and zero delay for key response.
- 【Self-protection signal generator】Built-in one-time quick-break fuse can avoid instrument damages caused by misinserting electric supply with 110V or 220V.
- 【Long working time】Built-in Battery, low power dissipation and long stand-by time. It has long-term stability and high precision.
- 【High quality calibrator】LB78 functions cover most functions required for maintenance of PLC, DCS, ESD, field instrument, regulating valve and frequency changer. Some key chips such as DA, reference voltage and operational amplifier adopts stable chips with high temperature and high temperature, to improve temperature stability of instrument and long-term aging performance index.
- 【Compact and portable】It adopts a brand shell and chooses grit finish, resistance soiling and anti-scratch. Its size is small and is easy to be carried.
8.7Very Good
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9
RiiaiRiiai Upgraded 4-20mA 0-24V Current Signal Generator, Current Voltage Adjustable Analog Simulator, Real-time Curve, Multiple Signal Types, 3000mAh USB Rechargeable, Preset Value, for PLC Testing
Main highlights- 【Programmable Output】 The 4-20 ma signal generator has the output function of auto, continuously changes the size according to the set parameters, and chooses three modes: monotonous rise, monotonous fall, and cycle
- 【Precise Conversion of Various Signal Types】 The 4-20ma signal generator is upgraded to support switching various signal modes available under different signal types: mA Current Signal (0 to 24 mA, precision 0.01mA), V Voltage Signal (0 to 24V, 0.01V), XMT Passive Current Signal (0 to 24mA, precision 0.01mA), Hz Pulse Signal (Frequency Output 0 to 9999 Hz, precision 5 digits). The input signal can be converted into an output signal among different physical quantities
- 【Multiple Interfaces to Choose】 Main interface programmable output. Input waveform interface: switchable input current graph display, input voltage graph display. VCA conversion interface: switchable voltage to active current, voltage to passive current, current to voltage. Automatic interface: automatic mode can be set for single ascent, single drop, and loop. PWM interface: Output PWM signal, voltage, frequency, and duty cycle can be set
- 【Built-in 3000 mAh USB Rechargeable】 With a 3000 mAh 3.7V built-in USB rechargeable battery embedded inside (charged via a micro 5V USB port), the function generator can be fully charged within 4-6 hours. Its working length of up to 26 hours allows for a longer working period
- 【2.4 Inch TFT Colorful Screen】 Designed with an adjustable pressing button backlight and a high-definition 240*320 TFT color LCD screen, it makes the signal generator kit for PLC testing easier for users to operate at night and during the day
8.5Good
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10
TestHelperTestHelper TH-71B Handheld Signal Generator Source Simulator Meter,DC Voltage Current Thermocouple K/E/J/T/B/R/S/N,24V Loop,V/mA Step Output
Main highlights- Voltage and current and thermocouple measurement and source output
- The display screen is backlit and the meter has a flashlight on the back
- Manual step output for V and mA and auto waveform output.
- Basic accuracy 0.2% for measure and source output
- 24V loop supply
8.4Good
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