Your Calibration Partner​​​​​​​
A Global Leading Manufacturer of High-End Electromagnetic Measurement and Calibration Instruments.
Company Profile
Tunkia Co., Ltd. specializes in electromagnetic measurement instruments, serving 30,000+ clients across 60+ countries. Founded in 2006, the company has nearly 20 years of experience, with a 12,000㎡ R&D base, an 11,000㎡ smart manufacturing facility, and an R&D team comprising 30% of its workforce.
With strong technical expertise, Tunkia has achieved major breakthroughs in electrical measurement methods, circuit design, and magnetic material testing. Its portfolio includes 300+ products widely used in metrology, power grids, and industrial inspection. Actively engaged in standardization, Tunkia has contributed to 84 standards and participated in national research projects. ​​​​​​​
Participate in Standards Setting and Revision
3
IEC/IEEE International Standards
20
GB National Standards of China
29
JJG/JJF Verification Regulation /Calibration Specification of China
Patents Application
2
International Patent
40
Invention Patents
34
Utility Model Patents

Company History

2023

Released the Chinese version of high-precision multifunction calibrator.
 
 
TUNKIA Development History-2023
 
Released the world's first wideband power analyzer calibration system.
 
 
 
 
Released the China's first fully self-developed automated testing system for electrical steel magnetic properties, now they are used in Baowu Steel Group and Hunan Hongwang.
Released a reference coaxial shunt with ultra-low power coefficient.
 
 
 
Released small class 0.01 single/three-phase standard energy meter, used for automatic calibration in electrical energy production lines.
 
Released the first precision power sensor testing system.
 
 
Release of the China’s first electrical steel magnetostriction measurement system.
 

 
Released the world's first vector voltage analyzer, with Class A phase measurement uncertainty reaching 0.3 μrad @ 45Hz–1kHz.
 
Released the Chinese version of precision multifunction calibrator.
 
 
 
Released the electric vehicle charging station tester.
 
 
Released the China’s first amorphous strip magnetic property testing system.
 
 
 
Released Class 0.01 commercialized three-phase standard energy meter and DC standard energy meter.
 
 
 
 
Released DC power standard device.
 
 
 
 
Established TUNKIA Co., Ltd. in Changsha.
 
 
 
Established Hunan Tongren Electronic Co., Ltd. and introduced AC sampling devices, transmitters, AC/DC electrical testing systems, and calibration devices for multimeters and clamp meters.

Our Partners
What We Chasing for
In the future, TUNKIA will strengthen the mutual penetration of cross-fields, continue to expand into the fields of mechanics, quality, and life sciences, and become a world-class provider of comprehensive measurement solutions. We will work with the upstream and downstream of the industry chain to build an instrument ecosystem for precision testing.

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