18 Best 4-20Ma Signal Generator of 2022 – Romance University

After hours researching and comparing all models on the market, Romance University finds out Top 18 Best 4-20Ma Signal Generator of 2022. Check our ranking below.

2,027 Reviews Scanned

Rank No. #1

DROK 4-20mA Generator, Adjustable Signal Generator, DC 0-10V 0 4-20mA Current Voltage Analog Simulator for Value Adjusting PLC Panel LED Testing

AMP & VOLT DUAL SIGNAL GENERATOR: Multifunctional DROK signal generator kit is able to generate ampere & voltage by 1 module, which generate 0/4 - 20mA current signal and 0-10V voltage signal just by rotating a multi-cycle precise potentiometer, simple and handy.

Rank No. #2

DROK 4-20mA Generator 2pcs, Adjustable Signal Generator, DC 0-10V 0 4-20mA Current Voltage Analog Simulator for Value Adjusting PLC Panel LED Testing

AMP & VOLT DUAL SIGNAL GENERATOR: Multifunctional DROK signal generator kit is able to generate ampere & voltage by 1 module, which generate 0/4 - 20mA current signal and 0-10V voltage signal just by rotating a multi-cycle precise potentiometer, simple and handy.
CLEAR LED DISPLAY: Our 4-20ma signal generator has bright and clear 3-digit LED digital display screen, which can be used to monitor the output current and voltage. You just need to push the switch below the monitor easy to switch the display.
AMP & VOLT DISPLAY CALIBRATION: There are current and voltage display calibrating potentiometer on the back of the module. If the display is accurate, you can calibrate the display value of current voltage by yourself.
WIDE APPLICATION: Our signal adapter can be used as signal generator, valve adjustment, inverter control, PLC debugging, panel debugging, LED testing, simulating the output of transmitter.
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.

Rank No. #3

Riiai DC 0-10V 0/4-20mA Current Voltage Signal Generator, Built-in Battery Power Supply Interface Analog Simulator, Adjustable 4-Digit Display, for PLC, Panel Debugging, Device Testing

【2-in-1 Voltage & Current Generator】 Voltage Output: -10V~+10V, precision is 0.01V, current output: 0-22mA, precision is 0.01mA, rotate the encoder knob to adjust the output voltage and current, switchable and adjustable, can be calibrated. The encoder knob rotates one circle and has 20 pulses
【Multiple 4-Digit Display】 With 4 different types of digit displays and two decimal points, you can press the "Mode" button to switch the display mode between voltage and current. You can also follow the instructions to switch the 0-100 percent or 0-50 HZ display
【Different Power Supply Modes】 With a 1000mAh, 3.7V, built-in rechargeable battery embedded inside (charged via a micro USB port), it can be powered in various ways: micro USB-5V or external power DC 15-30V, each of which can make the signal generator work
【Safe to Use】 Output range: passive or active 0-22 mA, -10~+10V, the voltage output can be exactly 0.00V; output range and precision are programmable and adjustable. Output with short circuit protection, power supply has reverse connection protection, which is safe for you to use. The user can set 9 x fast signal output points, making it more convenient to do debugging
【Wide Application】 It can be used for PLC and panel debugging, device testing, frequency converters, flow valves, servo motor speed regulation, light dimmers, etc. With its small size, it is easy and convenient for you to carry it

Rank No. #4

Riiai 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

【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
【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
【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
【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
【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

Rank No. #5

LB78 Current Voltage Signal Generator, 4-20mA /0-10V/mV Signal Source Calibrator Tester, LCD Display

【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.
【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.
【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.

Rank No. #6

MILLIAMP Current & Volt Generator 4-20MA 0-10V DC Analog Simulator Generator

Rank No. #7

Signal Generator 4-20ma Current Voltage Analog Signal Source Handheld Process Calibrator Voltage Current Signal Generator

𝑽𝒆𝒓𝒔𝒂𝒕𝒊𝒍𝒆 𝑺𝒊𝒈𝒏𝒂𝒍 𝑮𝒆𝒏𝒆𝒓𝒂𝒕𝒊𝒐𝒏: Elevate your debugging capabilities with our signal generator, designed for precise analysis of industrial field PLCs, process instrumentation, and electric valves. Experience unparalleled performance across a wide range of applications.
𝑽𝒆𝒓𝒔𝒂𝒕𝒊𝒍𝒆 𝑺𝒊𝒈𝒏𝒂𝒍 𝑮𝒆𝒏𝒆𝒓𝒂𝒕𝒊𝒐𝒏: Elevate your debugging capabilities with our signal generator, designed for precise analysis of industrial field PLCs, process instrumentation, and electric valves. Experience unparalleled performance across a wide range of applications.
𝑰𝒏𝒕𝒖𝒊𝒕𝒊𝒗𝒆 𝑼𝒔𝒆𝒓 𝑰𝒏𝒕𝒆𝒓𝒇𝒂𝒄𝒆: Enjoy seamless operation with our user-friendly button interface. Whether you are a novice or a seasoned expert, navigating complex tasks becomes effortless, enhancing your overall productivity.
𝑪𝒐𝒎𝒑𝒂𝒄𝒕 𝒂𝒏𝒅 𝑷𝒐𝒓𝒕𝒂𝒃𝒍𝒆: Despite its small size, this signal generator is remarkably lightweight and portable. Enjoy long standby times and exceptional precision, ensuring uninterrupted performance for your industrial requirements on the go.
𝑨𝒅𝒗𝒂𝒏𝒄𝒆𝒅 𝑻𝒉𝒆𝒓𝒎𝒐𝒄𝒐𝒖𝒑𝒍𝒆 𝑺𝒊𝒎𝒖𝒍𝒂𝒕𝒊𝒐𝒏: Customize your testing environment effortlessly with our innovative thermocouple simulator. Accurately replicate various temperature conditions for comprehensive system evaluations and effective debugging.

Rank No. #8

4-20mA Signal Generator with Digital Display Analog Simulator for PLC Panel Debugging Short Circuit Protection

CURRENT RANGE: The current analog generator adjustable output current range is 0mA‑22mA, while digital display ensures in , can meet your using requirement
APPLICATION: 4‑20mA generator can be applied to PLC panel debugging, equipment testing, frequency converter, servo motor speed regulation, etc, widely used in your work and life
Adjustable current generator use shielded and twisted pair cables for better anti interference ability, so the and communication are more stable with long distance and multiple devices
PROTECTIVE FUNCTION: Digital display generator comes with short circuit and reverse , you can use it with confidence
EASY TO USE: Generator has light weight together with compact size makes the rail installation easier, which can be completed in minutes

Rank No. #9

Adjustable Signal Generator 4-20mA 0-12v DC Voltage Current Analog Simulator PWM Pulse 1-150kHz High Precision Short Circuit Protection for PLC Controller Panel LED Testing Calibration

Built-in 3.7V lithium battery with a capacity of 1500mAh, maximum charging current of 0.8, the battery indicator light turns green when fully charged and stops charging automatically, generally takes more than 6 hours to charge, and can be used for 1-5 hours depending the size of the output load
Voltage output ±12V can be set, factory default 0-10V, accuracy after calibration 0.03V, with short circuit protection
Current output 0-24mA settable, factory default 4-20mA, accuracy after calibration 0.05mA, take-off resistance <500 ohms, short-circuit possible
PWM output: frequency 1-150 kHz adjustable, duty cycle 0-100% adjustable, high level fixed 5, driving current <20 mA, with short-circuit protection; (Note that this PWM output is not applicable to 12V or 2V systems, as 5V is considered low level for them);
Store output value when power off.Output short circuit protection, reverse connection protection, charging protection.

Rank No. #10

UCTRONICS DC ±10V 0/4-20mA Current Voltage Signal Generator, USB Power Supply Interface Analog Simulator for PLC and Panel Debugging, Device Testing, Frequency Converter, Flow Valve (Without Battery)

Power Supply: external connection micro USB-5V or external power DC 15-30V, each way makes the generator work, both ways also can be connected at the same time. Battery is not included.
Voltage Output: DC ±10V, precision is 0.01V, rotate the encoder knob to adjust output voltage, can be calibrated.
Current Output: 0-22mA, precision is 0.01mA, rotate the encoder knob to adjust output current, can be calibrated.
Multiple display: just push the small botton to switch the display mode between voltage and current, you can also follow the instructions to switch 0-100 percent or 0-50HZ display.
Product Dimension: 3.94” x 2.36” x 0.79” (100mm x 60mm x 20mm), portable and convenient.

Rank No. #11

Signal Generator 4-20ma, Effective and Practical High Accuracy 4-20ma Current Loop Signal Generator

This signal generator can use 4-20mA to generate voltage and control the current in the circuit.
Accuracy up to 0.01; Liquid crystal display; Rotary encoder adjustment ; Two connection terminals are non polarity.
Output range can be set; 4-20mA (device control) / -21mA (signal debugging)
Display mode can be set, it is convenient for you to see the value
Linear output can be calibrated; The actual output can be consistent with the display of customer device

Rank No. #12

Riiai 4 20ma 0 24V Signal Generator, Programmable Current Voltage Generator, Resistance Millivolt Thermocouple Tester, Real-time Curve, Historical Record, 3000mAh USB Rechargeable, for PLC Simulator

More Conversion Choices：Riiai 004 pocket millivolt generator can support switching more signal modes under different signal types: mA Current Signal (0 to 24 mA, resolution 0.001mA), V Voltage Signal (0 to 24V, resolution 0.001V), XMT Passive Current Signal (0 to 24mA, resolution 0.001mA), Hz Pulse Signal (Frequency Output 0 to 9999 Hz, resolution 5 digits), Resistance (0-390Ω, resolution 0.1Ω, temperature unit set to Celsius or Fahrenheit), Millivolt (-10-100mV, resolution 0.01mV)
Real-time Curve & Historical Record： Riiai 004 model 4-20ma signal generator supports 4 groups of commonly used signal values that can be preset to facilitate quick adjustment of output. The current-voltage analog simulator is designed to automatically display the changing trend of input and output signals by the real-time curve, and the sampling time of the curve can be set. Compared with the 003 model, it supports recording and viewing a certain amount of historical data in an easier way
Multiple Interface Terminals：The 0 to 24V DC signal generator kit adopts 4 inner diameters and 4mm wiring ports on the top surface that are represented by different color rings. The Blue port (IN-) is an alternate function, and it is also an input that can be switched to a 24V independent test power supply. The Red (OUT) port and Black (COM) port form an output port. Yellow (IN+) and Blue(IN-) form the input port. Users can choose the correct color cables and ports to start testing
3000 mAh USB Rechargeable & TFT Screen： With a 3000mAh 3.7V USB rechargeable battery (charged via a micro 5V USB port, the adapter is not included), the thermocouple calibrator can be fully charged within 4-6 hours, with a working time of up to 26 hours. It takes longer time to use and makes it easier to know the value changes through the clear 2.4-inch TFT screen display, and users can adjust the screen backlight according to the field
Programmable Output & Wide Application： The 0 24v DC 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. 4 groups of commonly used signal values can be preset to facilitate quick adjustment of output. It is widely used for PLC and panel debugging, device testing, frequency converter, flow valve, servo motors speed regulation, light dimmer, etc

Rank No. #13

4-20mA 0-10V Signal Generator,Adjustable Voltage Current Simulator,for PLC Debugging, 0-22mA Sink Source for Transmitter,Built-in Rechargeable Battery

[PRODUCT INFORMATION]:Cywhrvzsf Signal Generator Voltage Output Range: ±10V, Accuracy after Calibration: 0.05V, Drive Current <20MA, Current Output Range: 0-22MA, Accuracy after Calibration: 0.05MA, Load Sampling Resistance <500 Ohms, Working Environment: 0- 40℃
[3 POWER SUPPLY METHODS]:Cywhrvzsf Signal Generator External terminal power supply DC15-30V, power 1W (not charging)/4W (charging); External microUSB-5V, current 0.2A (not charging)/0.8A (charging); The built-in 3.7V lithium battery has a capacity of 1000mAh, and the maximum charging current is 0.6A. It will not charge automatically when it is fully charged. Generally, it will take more than 4 hours. It can take 1-5 hours to see the output load.
[WIDE SCENARIOS]:Cywhrvzsf Signal Generator has dual adjustment modes for coarse adjustment and fine adjustment, can set adjustment turns, Wide range of usage scenarios,For PLC and panel debugging, dimmers, inverters, equipment testing etc.
[SAFETY PROTECTION]:Cywhrvzsf Signal Generator current and voltage output is equipped with short-circuit protection, charging protection, and power supply with reverse connection protection, which is safe and secure to use.
[SATISFACTORY SERVICE]: We Provide 24-hour online service,If you encounter any problems, Please email SELLER SUPPORT (Not Amazon support), we will give you a perfect solution.

Rank No. #14

TestHelper 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

Voltage and current and thermocouple measurement and source output
Basic accuracy 0.2% for measure and source output
24V loop supply
Manual step output for V and mA and auto waveform output.
The display screen is backlit and the meter has a flashlight on the back

Rank No. #15

Jadeshay 4-20mA Two-Wire Current Loop Signal Generator with LCD Display, 3-21mA Extended Range 0.5% Accuracy Tester for Transducer Calibration, PLC & Industrial Control, Rotary Encoder, Memory Storage

High-Precision 4-20mA Current Output: The two-wire current loop signal generator generates stable 4-20mA or extended 3-21mA signals with ±0.5% output accuracy and 0.01 display resolution; ideal for calibrating transmitters, sensors, PLCs and industrial control systems with reliable two-wire loop simulation.
Clear LCD Display & Intuitive Rotary Encoder: This current loop signal generator has an easy-to-read LCD screen that shows current (mA), percentage (%) or frequency (Hz); adjust output smoothly and precisely using the rotary encoder.
Flexible Output Settings & Calibration: The current loop signal generator supports linear output calibration to match your device’s actual response; set custom output values from 3-21mA; ensures the generated signal perfectly aligns with the connected instrument’s display for accurate testing and troubleshooting.
Programmable Outputs & Memory Functions: The current loop signal generator can store up to 8 programmable output values (2-9) for quick recall; supports both automatic and manual storage modes—ideal for repetitive calibration tasks, maintenance checks or multi-point testing without re-entering values.
Industrial-Grade Design & Wide Compatibility: Terminal design of the two-wire current loop signal generator is polarity-free (no +/− required), simplifying connections; works with 15-30V DC supply and sampling resistance <500Ω; suitable for pressure sensors, temperature transmitters, flow meters and other 4-20mA loop-powered devices.

Rank No. #16

4-20mA /0-10V/mV Current Voltage Signal Generator Signal Source Calibrator Signal Tester

Self-protection signal generator:Built-in one-time quick-break fuse can avoid instrument damages caused by misinserting electric supply with 110V or 220V
High quality calibrator: 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
Signal Tester:Rational key layout, all functions have independent corresponding keys, which are easily to be operated
Fast speed and zero delay for key response
Built-in Battery ,Low power dissipation and long stand-by time

Rank No. #17

SG-003A 0-24V Signal Generator Adjustable Current Voltage Simulator 4-20mA Analog Sources Transmitter Process Control Signal Calibrator

Mainly applicable to debugging of industrial PLC, process instrument, electric valve, etc
Automatic output of voltage and current, with three modes of single drop and cycle; Free setup of upper and lower output limits
With input to output conversion, voltage conversion active current mode, passive mode and current conversion voltage mode
User-friendly Interface with adjustable backlight for even clear reading in dark; HD TFT color LCD screen; Real-time curve observation of changes in voltage and current
Powered by a rechargeable 3000mHA lithium battery with type-C port, low power consumption for long working hours and standby time as long as 26 hours

Rank No. #18

LB78 Current Signal Generator, 4-20mA /0-10V/mV Signal Source Calibrator Tester, Multifunctional Current Voltage Analog Simulator with LCD Display & Built-in Self-Protection Fuse

Multifunctional: LB78 current signal generator covers most functions required for the maintenance of PLC, DCS, ESD, field instrument, regulating valve and frequency changer
High Quality: The key components of the signal generator, such as DA chips, reference voltage chips, and operational amplifiers, adopt high-temperature stable chips, improving the instrument's stability and long-term durability
Easy to Use: The keypad layout is intuitive, with each function having its own button for easy operation. Fast speed and zero delay for key response
Self-Protection Design: LB78 signal generator is built-in with a one-time quick-break fuse to protect itself from accidental damage caused by misconnecting to 110V or 220V power supplies, ensuring safe and reliable operation
Long Battery Life: Current voltage analog simulator is powered by a built-in 1500mAh lithium battery, offering low power consumption and extended standby time, ensuring long-term stability and high precision

How Do You Buy The Best 4-20Ma Signal Generator?

Do you get stressed out thinking about shopping for a great 4-20Ma Signal Generator? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching 4-20Ma Signal Generator, which is why we have assembled a comprehensive list of the greatest 4-20Ma Signal Generator available in the current market. We’ve also come up with a list of questions that you probably have yourself.

Romance University has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for 4-20Ma Signal Generator that you consider buying. Your questions might include the following:

Is it worth buying an 4-20Ma Signal Generator?
What benefits are there with buying an 4-20Ma Signal Generator?
What factors deserve consideration when shopping for an effective 4-20Ma Signal Generator?
Why is it crucial to invest in any 4-20Ma Signal Generator, much less the best one?
Which 4-20Ma Signal Generator are good in the current market?
Where can you find information like this about 4-20Ma Signal Generator?

We’re convinced that you likely have far more questions than just these regarding 4-20Ma Signal Generator, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for 4-20Ma Signal Generator, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible 4-20Ma Signal Generator. Make sure that you are only using trustworthy and credible websites and sources.

Romance University provides an 4-20Ma Signal Generator buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available 4-20Ma Signal Generator currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

Brand Value: Every brand of 4-20Ma Signal Generator has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
Features: What bells and whistles matter for an 4-20Ma Signal Generator?
Specifications: How powerful they are can be measured.
Product Value: This simply is how much bang for the buck you get from your 4-20Ma Signal Generator.
Customer Ratings: Number ratings grade 4-20Ma Signal Generator objectively.
Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 4-20Ma Signal Generator.
Product Quality: You don’t always get what you pay for with an 4-20Ma Signal Generator, sometimes less, and sometimes more.
Product Reliability: How sturdy and durable an 4-20Ma Signal Generator is should be an indication of how long it will work out for you.

Romance University always remembers that maintaining 4-20Ma Signal Generator information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

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18 Best 4-20Ma Signal Generator of 2022 – Romance University

How Do You Buy The Best 4-20Ma Signal Generator?

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