Industrial & Scientific

The Best Temperature 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.

Accurate temperature calibration is crucial for maintaining product quality, ensuring process efficiency, and meeting regulatory compliance in various industrial and scientific settings. Investing in a reliable temperature calibrator prevents costly errors and downtime. This guide will help you select the best device for your specific needs.

No. 1
Dry Block High Temperature Calibrators (Range: 20°C to 650°C) with Thermocouples (T, J, K, N, R, S) for...
  • Dry Block Temperature Calibrator Range: 50 to 650°C | Accuracy: ±0.6°C | Bath Stability: ±0.05°C | Stabilization Time: 20 Min. | Heating Time: 30 to 32 Min. (50 to 650°C) | Resolution: 0.1°C | Units: °C / °F Switchable | Display: Graphical with...
  • Transmitter Supply: 24V DC ± 10% (Loop Powered) |Block Diameter: 25.4 mm | Block Depth: 120 mm | Insertion Tube Depth: 110 mm | Temperature Setting: Digital Display through feather touch keypad | Display Stability: ±0.2°C | Radial uniformity Fixed...
  • Measuring Parameters: mA, mV, Volts, Ohms, RTD3 (Pt 100)3 | mA Range: 0 to 25 mA; Resolution: 0.001 mA; Accuracy: ±0.025% of Reading + 10 µA | mV Range: 0 to 1000.0 mV; Resolution: 0.01 mV; Accuracy: ±0.025% of Reading + 0.25 mV | Volts Range: 0 to...
  • Thermocouple Types: T, J, K, N, R, S | Thermocouple Range( T,J,K,R,S): -200 to 400°C; Resolution: 0.1°C; Accuracy: ±0.025 % of Reading + 1°C |Thermocouple Range(R,S): 300 to 1760°C; Resolution: 1°C; Accuracy: ±0.025 % of Reading + 1°C
  • Supply Scope: 1 Unit of DBC-02 Dry Block Calibrator, Power Cable, 1 Unit of Test Lead (2 Wire), Insertion Tube: Dual Hole - 1 x 1/4” + 1 x 12.5 mm, Dual Hole - 1 x 1/4” + 1 x 8.2 mm, 1 Unit of Insertion Tool, 2no.s of 6A Spare Fuses, Instruction...
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
SaleNo. 3
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
No. 4
Extech PRC30 - Multifunction Process Calibrator - Sources & Measures mA, mV, V, and Thermocouples (J, K, T, E...
  • Multifunction Calibration - Sources and measures DC current (0-24 mA), voltage (0-20 V and 0-2000 mV), and eight thermocouple types (J, K, T, E, C, R, S, N), complete with Cold Junction Compensation.
  • 24 V Loop Power - Provides loop excitation power for calibrating 2‑wire current transmitters without needing external power.
  • User Presets & High Accuracy - Store up to five customizable calibration presets. Enjoy precision readings with typical accuracy of ±(0.01% + 1 digit) for current and voltage sources.
  • Intuitive Display & Ergonomic Design - Large, backlit dot-matrix LCD housed in a palm-sized double-molded casing for readability and comfort in any environment.
  • Ready-to-Use Kit - Includes test leads, alligator clips, thermocouple and universal calibration cables, a universal 100-240 VAC adapter with four international plugs, six AA batteries, and a rugged hard carrying case.
No. 5
CEM Dry Block Calibration BX150 Handheld Dry-Well Hi-Temperature Calibrator, Block A, 33°C to 300°C(91.4 to...
  • The calibrator can operate at very high temperature . Precautions must be taken to prevent personal injury or damage to surrounding objects . probes may be hot when removed from the units and should be placed on a heat resistant surface . The unit may...
  • Caution must be taken when removing probes and inserts from the units . if the unit is set at a high temperature the inserts will be very hot and could cause burns probes and inserts only on a suitable heatproof surface .
  • Only place temperature probes in dry-block holes . These units are designed to be operated dry . Do not sprinkle and liquid into any of the dry-block holes .
  • These dry-blocks are designed to be rugged and durable but do contain electronics. Do not operate in dirty , dusty or very damp enviroment or near liquids that could present a hazard from electric shock.
  • The units are ideal for use in a variety of industrial and process applications .Each unit is supplied with a traceable certification of calibration of calibration showing actual test data , which can be used as part of quality assurance programmes .
No. 6
Dry Block Temperature Calibrators (Range: 20°C to 650°C) with Thermocouples (T, J, K, N, R, S) for...
  • Range: Ambient to 650°C | Accuracy: ±0.6°C | Bath Stability: ±0.05°C | Stabilization Time: 20 Min. | Heating Time: 30 to 32 Min. (Ambient to 650°C) | Resolution: 0.1°C | Units: °C / °F Switchable | Display: Graphical with LED Backlight | Power...
  • Transmitter Supply: 24V DC ± 10% (Loop Powered) |Block Diameter: 25.4 mm | Block Depth: 120 mm | Insertion Tube Depth: 110 mm | Temperature Setting: Digital Display through feather touch keypad | Display Stability: ±0.2°C | Radial uniformity Fixed...
  • Measuring Parameters: mA, mV, Volts, Ohms, RTD3 (Pt 100)3 | mA Range: 0 to 25 mA; Resolution: 0.001 mA; Accuracy: ±0.025% of Reading + 10 µA | mV Range: 0 to 1000.0 mV; Resolution: 0.01 mV; Accuracy: ±0.025% of Reading + 0.25 mV | Volts Range: 0 to...
  • Thermocouple Types: T, J, K, N, R, S | Thermocouple Range( T,J,K,R,S): -200 to 400°C; Resolution: 0.1°C; Accuracy: ±0.025 % of Reading + 1°C |Thermocouple Range(R,S): 300 to 1760°C; Resolution: 1°C; Accuracy: ±0.025 % of Reading + 1°C |
  • Supply Scope: 1 Unit of DBC-02 Dry Block Calibrator, Power Cable, 1 Unit of Test Lead (2 Wire), Insertion Tube: Dual Hole - 1 x 1/4” + 1 x 12.5 mm, Dual Hole - 1 x 1/4” + 1 x 8.2 mm, 1 Unit of Insertion Tool, 2no.s of 6A Spare Fuses, Instruction...
No. 7
VA710 Thermocouple Calibrator Temperature Simulator
  • VA710 Thermocouple Calibrator sources and measures 7 thermocouple type devices (J, K, T, E, R, S, B ,N) or mV (-10mV~100mV)
  • Large 5 digit LCD with full angel
  • High accuracy maximum up to 0.3°C and 0.025% for mV
  • Measure or Simulating a Thermocouple
  • Ambient temperature compensation and display
  • Temperature Resolution: 0.1℃/0.1℉
  • Temperature error: ± (0.3+10uV)
  • Voltage range:-10mV-100mV
No. 8
Dry Block High Temperature Calibrators (Range: 20°C to 650°C) with Thermocouples (T, J, K, N, R, S...
  • Range: 50 to 650°C | Accuracy: ±0.6°C | Bath Stability: ±0.05°C | Stabilization Time: 20 Min. | Heating Time: 30 to 32 Min. (50 to 650°C) | Resolution: 0.1°C | Units: °C / °F Switchable | Display: Graphical with LED Backlight | Power Supply: 230V...
  • Transmitter Supply: 24V DC ± 10% (Loop Powered) |Block Diameter: 25.4 mm | Block Depth: 120 mm | Insertion Tube Depth: 110 mm | Temperature Setting: Digital Display through feather touch keypad | Display Stability: ±0.2°C | Radial uniformity Fixed...
  • Measuring Parameters: mA, mV, Volts, Ohms, RTD3 (Pt 100)3 | mA Range: 0 to 25 mA; Resolution: 0.001 mA; Accuracy: ±0.025% of Reading + 10 µA | mV Range: 0 to 1000.0 mV; Resolution: 0.01 mV; Accuracy: ±0.025% of Reading + 0.25 mV | Volts Range: 0 to...
  • Thermocouple Types: T, J, K, N, R, S | Thermocouple Range( T,J,K,R,S): -200 to 400°C; Resolution: 0.1°C; Accuracy: ±0.025 % of Reading + 1°C |Thermocouple Range(R,S): 300 to 1760°C; Resolution: 1°C; Accuracy: ±0.025 % of Reading + 1°C
  • Supply Scope: 1 Unit of DBC-02 Dry Block Calibrator, Power Cable, 1 Unit of Test Lead (2 Wire), Insertion Tube: Dual Hole - 1 x 1/4” + 1 x 12.5 mm, Dual Hole - 1 x 1/4” + 1 x 8.2 mm, 1 Unit of Insertion Tool, 2no.s of 6A Spare Fuses, Instruction...
No. 9
HOJILA VA710 Thermocouple Calibrator, Thermocouple Simulator/Meter
  • Source and measure 7 thermocouple type devices (J, K, T, E, R, S, B,N) or mV (-10mV~100mV)
  • High accuracy maximum up to 0.3℃C and 0.025% for mV
  • With Standard jack for external power supply
  • Measure or Simulating a Thermocouple
  • Ambient temperature compensation and display
  • Temperature Resolution: 0.1/0.1
  • Temperature error:±(0.3+10uV)
  • Voltage range:-10mV-100mV
  • Voltage resolution: 0.01mV
  • Voltage accuracy:±(0.025%+2)
No. 10
eC370T Volt mA Thermocouple Loop Process Calibrator by ennoLogic – 0-20V and 4-20mA V/mV/mA and Temperature...
  • VERSATILE AND ACCURATE VOLT MA THERMOCOUPLE CALIBRATOR: Signal generator, simulator and volt / mA meter for calibrating, testing and repairing milliamp loops, thermocouples, PLC, temperature control and HVAC systems. Easily generate precise test signals...
  • NUMERIC KEYPAD for ease and flexibility in setting output signals configuring options. HOTKEY programming for each numeric key (long-press immediately outputs user-configured voltage, current or temperature signal). RAMP AND LADDER OUTPUT FUNCTIONS can be...
  • MEASURE VOLTAGE OUTPUT SIGNALS from process devices and sensors with two input ranges of 0-100mV (0.01mV resolution, 0.06% accuracy) and 0-20V (1mV resolution, 0.08% accuracy). MEASURE CURRENT TRANSMITTERS within a range of 0 to 24mA with 0.001mA...
  • GENERATE PRECISE TEST VOLTAGES, CURRENTS AND SIMIULATED THERMOCOUPLE TEMPERATURE SIGNALS for testing loops, transmitters, data loggers, meters or any devices that measure 4-20mA currents, sensor voltages, or temperatures. Generate voltages in two ranges...
  • The eC370T Volt/mA/TC calibrator is powered by six AAA batteries (included). A windows-based software tool is available for download to control the calibrator with a computer via USB cable. The package includes one eC370T calibrator, 6 AAA batteries...

Last update on 2026-08-23 / Affiliate links / Images from Amazon Product Advertising API

How to Choose the Best Temperature Calibrators

Accuracy and Stability

The primary function of a temperature calibrator is to provide a stable and accurate reference temperature. Look for devices with high accuracy ratings (e.g., +/- 0.1°C or better) and excellent temperature stability over time. This ensures that your measurements are precise and repeatable, which is critical for sensitive applications.

Temperature Range and Type

Consider the typical temperature range you need to calibrate. Calibrators come in various forms, including dry-block calibrators, liquid baths, and infrared calibrators. Dry-block calibrators are versatile and portable for many industrial uses, while liquid baths offer superior stability for certain lab applications. Ensure the chosen device covers your required temperature span, from sub-zero to high temperatures.

Portability and Ease of Use

For field calibration, portability and ease of use are important factors. Many modern calibrators are lightweight, compact, and feature intuitive user interfaces with clear displays. Features like quick heating/cooling times, built-in diagnostics, and data logging capabilities can significantly improve efficiency during calibration tasks.

Frequently Asked Questions

What is a temperature calibrator used for?
A temperature calibrator is used to verify and adjust the accuracy of temperature measuring instruments, such as thermometers and thermocouples. It provides a precise and stable temperature source against which other devices can be compared.
What is the difference between a dry-block and a liquid bath calibrator?
Dry-block calibrators use metal inserts with precisely machined wells to hold the sensor being calibrated and offer portability. Liquid bath calibrators use a stirred fluid medium for calibration, providing excellent stability and uniformity, often preferred for lab settings.
How often should temperature calibrators be calibrated?
The calibration frequency for temperature calibrators depends on usage, environmental conditions, and industry standards. Generally, annual calibration is recommended, but critical applications may require more frequent checks.
What accuracy level is sufficient for most industrial applications?
For most general industrial applications, an accuracy of +/- 0.1u00b0C to +/- 0.5u00b0C is often sufficient. However, highly specialized processes may demand higher accuracy, such as +/- 0.01u00b0C.