Plumbing & Electrical

The Best Electrical Calibrators

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Our picks are based on Amazon bestseller rankings, verified customer ratings, and product availability. We update our recommendations regularly to ensure accuracy.

Ensuring accurate measurements is crucial for safety and efficiency in electrical work. An electrical calibrator verifies the precision of your testing and measurement instruments, preventing potential errors and costly rework. Investing in a reliable calibrator safeguards your projects and professional reputation.

SaleNo. 1
Fluke 719PRO-300G Electric Pressure Calibrator, 300 PSIG, 30 V DC, 9.5" x 4.4" x 2.8"
  • Test pressure switches easily with easy-to-use switch test function
  • Precision pressure adjust vernier for easy and accurate pressure calibration
  • Pump cleanout ports reduce pump failures from moisture and fluid damage
  • Precision temperature measurement with optional RTD probe
  • Fluid trap included with the unit to mitigate chance of fluid damage in at-risk applications
SaleNo. 2
Fluke-714B Thermocouple Calibrator, Yellow/Brown/Black/Red
  • Measure and simulate (17) different thermocouple types and millivolts
  • Measure 4 to 20 mA signals while simultaneously sourcing a temperature signal
  • Hanging tool designed in and included with every unit
  • Configurable 0 % and 100 % source settings for quick 25 % linearity checks
  • Linear ramp and 25% step auto ramp based on 0% and 100% settings
No. 3
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...
  • 【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.
SaleNo. 4
Fluke 726 Precision Multifunction Process Calibrator
  • More precise measurement and calibration source performance, accuracies of 0. 01 percent
  • 2 separate channels; measure, source and view process signals simultaneously
  • Measure volts, mA, RTDs, thermocouples, frequency and resistance to test sensors and transmitters
  • Source/simulate volts, mA, thermocouples, RTDs, frequency and pressure to calibrate transmitters; Maximum current:22 mA, short circuit protected
  • 3 Year
No. 5
Fluke FLUKE-707 707 Loop Calibrator with Quick Click Knob, 28V Voltage, 24mA Current, 0.015 percent Accuracy
  • One handed user interface with "quick click" detented knob; mA sourcing, simulation and measurement
  • 0.015 Percent accuracy and 0.001 mA resolution; simultaneous mA and percent of span display
  • Selectable step or ramp outputs; 24V Loop supply with mA measure, including 250O HART resistor
  • 0-28 VDC measurement to check loop voltage; easy battery exchange without opening the case; compact case with separate protective holster
  • 3 year warranty
No. 6
SEESII Upgraded 4-20mA 0-24V Signal Generator, SG-004A
  • Conversion Of Engineering Quantity Display: Displays signals as physical or engineering values; linear correspondence between physical and engineering quantities; for example, 420mA current signal corresponds to 0100; 4mA equals 0, 12mA equals 50, 20mA...
  • Signal Conversion: The input signal is converted into an output signal, which can be converted between different physical quantities; for example: the input frequency signal is converted into a current signal, and the input range is 0-1000hz into 4-20mA.
  • Programming Output: It has the output function of automatically and continuously changing the size according to the setting parameters, and can choose three modes: monotonous rise, monotonous fall and cycle.
  • 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.It can also automatically adjust the display curve within the range of the maximum and minimum values within...
  • History Record & Firmware Upgrade: Record and view a certain amount of historical data.Support USB emulated U disk for firmware upgrade.
No. 7
Multifunctional Calibrator TD1880 - High-Precision DC/AC Voltage and Current, Frequency, Power, Phase...
  • Precise calibration: The TD1880Multifunction Calibrator ensures precise calibration with 11 ppm accuracy and supports DC voltage output from ±0 to 1020 V and DC current output from ±0 to 20.5 A, making it ideal for digital multimeters up to 6.5 digits.
  • Versatility: Covers a wide range of calibration needs, offering AC/DC voltage and current, power, phase, frequency and analog resistance outputs, with optional features such as analog capacitance and thermocouple compatibility.
  • Wide output range: Multifunction Calibrator has an AC voltage output of 1mV to 1020V and an AC current output of 29μA to 20.5A, which can meet the different calibration requirements of various industries.
  • Stability and Accuracy: Enjoy superior stability with up to 2 ppm/24 hours DC voltage stability, while four-terminal analog DC resistance mode minimizes errors for accurate measurements.
  • User-Friendly Interface: The TD1880Multifunction Calibrator features intuitive controls and a touch-screen interface that provides multiple methods of seamless calibration adjustments, ensuring efficiency and ease of use.
No. 8
LB02 Process Calibrator 4-20mA 0-10V mV Resistance Voltmeter Signal Generator
  • Built in fast-acting one time fuse can prevent most of the instrument damage caused by incorrect insertion of above 110v city power.
  • AD, DA, reference voltage, operational amplifier and other important chips are all of high precision, high temperaturestability, to improve the temperature stability and long-term aging performance of instrument.
  • The sensitivity of the thermal resistance and the resistance output to the external exactiation current are reduced in the circuit structure.
  • Increased the output accurarcy. It is suitable for constant current and non-constant current of the external exactiation current, which enlarges the usable range of the instrument.
  • High speed response key without any delay. The LB02 functions cover most of the functions required for the maintenace of PLC, DCS, ESD, filed instrument, control valves, frequency converters and so on, with high accuracy and long term stability.
No. 9
LB78 Signal Generator, 4-20mA /0-10V/mV Current Voltage Signal Generator Signal Source Calibrator Signal...
  • 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
No. 10
Fluke FLUKE-719PRO-150G Electric Pressure Calibrator, Electric Pump Upto 150 PSIG, 9.5" x 4.4" x 2.8"
  • Test pressure switches easily with easy-to-use switch test function
  • Precision pressure adjust vernier for easy and accurate pressure calibration
  • Pump cleanout ports reduce pump failures from moisture and fluid damage
  • Precision temperature measurement with optional RTD probe
  • Fluid trap included with the unit to mitigate chance of fluid damage in at-risk applications

Last update on 2026-09-01 / Affiliate links / Images from Amazon Product Advertising API

How to Choose the Best Electrical Calibrators

Understanding Electrical Calibrator Types

Electrical calibrators are specialized tools designed to verify the accuracy of other electrical test equipment. They can be broadly categorized into:

  • Function Calibrators: These devices generate known electrical signals, such as voltage, current, resistance, and frequency. They are used to check if a meter or instrument is reading these values correctly.
  • Process Calibrators: Often more versatile, these can both source and measure multiple parameters relevant to industrial processes, including temperature and pressure alongside electrical signals.
  • Multi-function Calibrators: Combining the capabilities of both function and process calibrators, these offer the widest range of testing possibilities for various instruments.

Key Features to Consider

When selecting an electrical calibrator, several features are paramount:

  • Accuracy and Resolution: Look for calibrators with high accuracy specifications and sufficient resolution to match the precision requirements of the instruments you intend to test.
  • Parameter Range: Ensure the calibrator can source and measure the specific electrical parameters (e.g., AC/DC voltage, current, resistance, frequency, capacitance) and ranges that your equipment requires.
  • Portability and Durability: For field use, a rugged design, compact size, and long battery life are essential. Benchtop models may offer higher precision and more features.
  • User Interface: An intuitive display and straightforward controls will make the calibration process more efficient and less prone to user error.

Calibration Standards and Certifications

The importance of traceability cannot be overstated. When purchasing a calibrator, consider whether it comes with a certificate of calibration traceable to national or international standards (like NIST in the US). This certification ensures that the calibrator itself has been verified against known, reliable references, providing confidence in its accuracy.

Application-Specific Needs

The intended use of the calibrator should drive your decision. For basic troubleshooting and verification, a simpler function calibrator might suffice. However, for critical applications in manufacturing, research, or highly regulated industries, a high-accuracy, multi-function calibrator with comprehensive certification is often necessary.

Frequently Asked Questions

What is an electrical calibrator used for?
An electrical calibrator is used to verify the accuracy of other electrical measurement and test equipment. It generates precise electrical signals to check if instruments like multimeters or oscilloscopes are providing correct readings.
What is the difference between a function calibrator and a process calibrator?
A function calibrator primarily generates basic electrical signals like voltage and current. A process calibrator is typically more advanced, capable of sourcing and measuring a wider range of signals, often including non-electrical parameters like temperature and pressure relevant to industrial processes.
Why is traceability important for an electrical calibrator?
Traceability ensures that the calibrator's measurements are traceable to recognized national or international standards. This provides confidence that the calibrator itself is accurate and reliable, which is essential for maintaining the integrity of your own instrument calibrations.
Can I use an electrical calibrator to calibrate any type of electrical meter?
Generally, yes, provided the calibrator supports the specific parameters and ranges of the meter you need to test. Always check the specifications of both the calibrator and the meter to ensure compatibility.
How often should an electrical calibrator be recalibrated?
The frequency of recalibration depends on usage, environmental conditions, and manufacturer recommendations. However, a common practice is to recalibrate annually or after any event that might have compromised its accuracy.