Discover Affordable 3.5-digit Multimeter Calibrators from TUNKIA

1. What Is a Multimeter and Why Calibrate It?

A multimeter is a versatile electrical instrument used to measure voltage, current, and resistance. Commonly used by electricians, engineers, and technicians, multimeters play a critical role in troubleshooting and maintaining electrical systems across industrial, laboratory, and on-site environments.

The most widely used multimeters are handheld 3.5-digit digital multimeters. While affordable and convenient, their accuracy and stability can drift over time, especially under frequent use or harsh conditions. That’s why regular multimeter calibration is essential—to ensure reliable measurement, meet quality standards, and avoid costly errors.

This is where a multimeter calibrator becomes indispensable.

2. Tunkia’s 3.5-Digit Multifunction Calibrators: Cost-Effective and Versatile

To meet the demand for calibrating 3.5-digit multimeters and analog meters, Tunkia offers two compact yet powerful multifunction calibrator models:

TD1850 Multifunction Calibrator

The TD1850 integrates standard sources for AC/DC voltage, current, and resistance. With an accuracy class of 0.05, it is ideal for calibrating:

• 3.5-digit multimeters

• Analog multimeters

• Single-function voltmeters, ammeters, and ohmmeters

It offers an affordable and reliable solution for basic calibration needs.

TD1855 Multifunction Calibrator

An upgraded version of TD1850, the TD1855 includes all the core functions and adds:

• AC/DC power output

• Pulse frequency output

This makes it a versatile multimeter calibrator that also supports calibration of basic power meters and other field instruments—without sacrificing cost-effectiveness.

TD1850 Multifunction Calibrator-Calibrating 3.5-digit Multimeter

3. Key Specifications of TD1850 & TD1855 Multifunction Calibrators

The following table summarizes the technical specifications of Tunkia’s 3.5-digit multifunction calibrators:

Both models deliver wide output ranges, stable performance, and simplified operation—making them highly suitable for multimeter calibration in metrology labs, production lines, and field testing environments.

4. Operation Video: How to Use TD1855 Multifunction Calibrator

For a hands-on demonstration, watch this video showing how to operate the TD1855 Multifunction Calibrator to perform calibration tasks for both analog and digital multimeters.

Covered in the Video:

• Introduction to product interface and output ports

• Calibration of analog meters: AC/DC voltage, AC/DC current, resistance

• Calibration of 3.5-digit digital multimeters: AC/DC voltage, AC/DC current, resistance

• Demonstration of additional functions: pulse output, power output, transmitter calibration, clamp meter testing

Whether you're calibrating handheld multimeters or analog meters, this multifunction calibrator simplifies the process with accuracy and ease.

5. Other Tunkia Multifunction Calibrators for Higher-Precision Applications

Looking for higher-end solutions? Tunkia also offers:

TH1950 High-Precision Multifunction Calibrator

• Designed for 7.5-digit and 8.5-digit multimeters

• Best accuracy: 3.7 ppm

• Meets demanding metrology lab requirements

TD18 Series Multifunction Calibrators

• Full-range output: AC/DC voltage, current, power, frequency, phase

• Also supports: resistance, capacitance, thermocouple/RTD simulation, pulse output

• Suitable for calibrating 6.5-digit and below digital multimeters, clamp meters, and power meters

• Fully compliant with ISO/IEC 17025 electrical calibration standards

• Affordable multi-model options for lab or field use

TD1880 High Precision Multifunction Calibrator-Calibrating 6.5-digit Multimeter

6. Why Choose Tunkia’s Multimeter Calibrator Solutions?

• Wide range of multifunction calibrators for different accuracy levels

• Compact design with intuitive operation

• Affordable price, ideal for metrology labs and production line maintenance

• Reliable after-sales support and demo videos