Your Calibration Partner​​​​​​​
 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.
 
 

 

2022

Released the world's first wideband power analyzer calibration system.
 
 
 
 

2021

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.

2020

Released a reference coaxial shunt with ultra-low power coefficient.
 
 
 

2019

Released small class 0.01 single/three-phase standard energy meter, used for automatic calibration in electrical energy production lines.
 

2018

Released the first precision power sensor testing system.
 
 

2017

Release of the China’s first electrical steel magnetostriction measurement system.
 

 

2016

Released the world's first vector voltage analyzer, with Class A phase measurement uncertainty reaching 0.3 μrad @ 45Hz–1kHz.
 

2015

Released the Chinese version of precision multifunction calibrator.
 
 
 

2014

Released the electric vehicle charging station tester.
 
 

2013

Released the China’s first amorphous strip magnetic property testing system.
 
 
 

2012

Released Class 0.01 commercialized three-phase standard energy meter and DC standard energy meter.
 
 
 
 

2011

Released DC power standard device.
 
 
 
 

2006

Established TUNKIA Co., Ltd. in Changsha.
 
 
 

1998

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.
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CONTACT US

 WhatsApp:+86-18773180215
     Wechat: 18773180215
 Phone: +86-18773180215
 E-mail: global @tunkia.com
E-mail: Eugene@tunkia.com
 Address: NO.16 Panpan Road, Changsha
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