Plumbing & Electrical

The Best Electrical Calibrators

1 min read WeKompare Editorial Team Products verified: July 17, 2026 10 products compared

This post contains affiliate links. As an Amazon Associate we earn from qualifying purchases.

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.

No. 1
PIE Model 334 Milliamp Loop Calibrator
PIE Model 334 Milliamp Loop Calibrator
  • Your unit is calibrated prior to shipment with a new nist-traceable calibration certificate with data
  • The nist calibration provides you assurance your instrument meets manufacturer’s specifications. Your instrument is ready to use day one meeting most quality system standards
  • 4-20 ma calibrator. Includes rubber boot and free nist traceable certificate of calibration (optional hands free carrying case 020-0211)
  • True 0.025 percent of reading
  • Read and source 0.000 to 50.000 ma
$996.00
Buy On Amazon
No. 2
TestHelper TH77 Process Multimeter Calibrator Meter Multifunctional DMM,250Ω HART Loop Resistance,24V Loop...
TestHelper TH77 Process Multimeter Calibrator Meter Multifunctional DMM,250Ω HART Loop Resistance,24V Loop...
  • Loop power:24V,Loop detection
  • The 24V loop power supply and measuring the current
  • Built in 250 Ω HART loop resistance
$99.99
Buy On Amazon
SaleNo. 3
Fluke 715 Volt/mA Loop Calibrator
Fluke 715 Volt/mA Loop Calibrator
  • Measure Loop Current (0-20 Ma, 4-20 Ma) Signals With Very High Accuracy Of 0. 015% And 1 Ma Resolution
  • Measure Voltage Output Process Signals From Places, Transmitters
  • Source Or Simulate 24 Ma Loop Current
  • Source Voltage To 100 Mv Or 10V
  • 24V Loop Supply With Simultaneous Current Measurement
  • Measure loop current (0-20 mA, 4-20 mA) signals with very high accuracy of 0.015-Percent and 1 mA resolution
  • Configurable zero and span settings
  • Step and linear ramp output function
  • Compatible with toolpack magnetic hanging system
  • Holster features test lead storage
−12% $1,638.41 Amazon Prime
Buy On Amazon
No. 4
PIE 820PIECAL Multifunction Single Channel Calibrator
PIE 820PIECAL Multifunction Single Channel Calibrator
  • Lighten up your toolbox -- Technician friendly operation
  • Use it as a milliamp and voltage calibrator -- Calibrate directly in temperature (°C & °F)
  • Checkout flow and vibration systems -- Troubleshoot loop & wiring problems
  • Quickly set any three outputs plus automatic stepping & ramping
  • Measure temperature sensors, frequency pickups, loop currents and voltage levels
$3,113.00
Buy On Amazon
SaleNo. 5
Triplett PCAL100 High Precision Temperature Calibrator - Measurement and Sourcing of Temperature, Voltage...
Triplett PCAL100 High Precision Temperature Calibrator - Measurement and Sourcing of Temperature, Voltage...
  • High Precision: Achieve accurate results with source and measure accuracy up to 0.05%, ensuring reliable data in critical applications
  • Multi-Sensor Capability: Measure and source 11 thermocouple types and 5 RTD types
  • Adjustable Temperature Compensation: ensures accurate readings across different environments
  • Multi-Wire Resistance Measurement: Conduct 2-, 3-, and 4-wire resistance measurements along with thermal resistance (RTD)
  • Built-in Functions: Flashlight, Auto Power Off, Low Battery Indicator
−10% $445.49 Amazon Prime
Buy On Amazon
No. 6
LB02 Process Calibrator 4-20mA 0-10V mV Resistance Voltmeter Signal Generator
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.
$119.99
Buy On Amazon
SaleNo. 7
Fluke-714B Thermocouple Calibrator, Yellow/Brown/Black/Red
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
−10% $1,878.23 Amazon Prime
Buy On Amazon
SaleNo. 8
Fluke 724 Temperature Calibrator
Fluke 724 Temperature Calibrator
  • Easy to read dual display lets you view input and output simultaneously
  • Measure RTDs, thermocouples, ohms, and volts to test sensors and transmitters
  • Source/simulate thermocouples, RTDs, volts, and ohms to calibrate transmitters
  • Perform fast linearity tests with 25% and 100% steps
  • Power transmitters during test using loop power supply with simultaneous mA measurement
−14% $3,009.86 Amazon Prime
Buy On Amazon
No. 9
REED Instruments R5825 Loop Calibrator
REED Instruments R5825 Loop Calibrator
  • Milliamperage Source and Measurement
  • Measure 0-30 VCC to Verify Loop Voltage
  • Base Measurement/Source Precision of 0.02%/0.05%
  • Milliamperage and Percentage Simulation with 0.001 Display Range
  • Selectable Step or Ramp Outputs
  • Easy-to-Read 6-Digit ACL Display
  • Built-In LED Flashlight
  • Internal 24V Loop Power Supply
  • Low Battery Indicator and Auto Shutdown
$499.00
Buy On Amazon
No. 10
Fluke 726 Precision Multifunction Process Calibrator
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
$5,498.67
Buy On Amazon

This article is part of our complete guide Plumbing & Electrical — browse all our comparisons and buying guides.

Related comparisons

All products in Plumbing & Electrical →

Last update on 2026-07-17 / 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.