TUNKIA TH1950 - Chinese "Fluke 5730a grade" multifunction calibrator - Page 1
Forum section: electronics / general

author: aronake
author_rank: Frequent Contributor
timestamp: October 18, 2024, 04:13:15 pm
content: Hi all,I just saw this:https://www.tunkia.cn/TH1950-High-Precision-Multifunction-Calibrator-pd788121088.htmlSpecification wise it claims to be a Chinese "Fluke 5730a grade" multifunction calibrator. No idea about price, probably quite a bit of money, but significantly cheaper than a Fluke 5730a (for good reasons). Specifications and real long term performance can be two different things though....I have never heard about this company before, but they have lots of interesting equipment. Multifunction calibrators, voltage standards, resistance standards, resistance bridges etc.Still no 8.5 digit multimeter, but I could see that comming any time soon.Website here:https://www.tunkia.cn/Product catalogue here:https://jkrorwxhqkiklq5p-static.micyjz.com/TUNKIA+Production+Catalog+Introduction-2024-aidlpBplKmolkSRlknorirkio.pdfThey also have a youtube channel:https://www.youtube.com/@Tunkia_/videosFirst China made cheap basic stuff, then gradually advancing in all areas. Now very good EVs. Comac not really Airbus and Boing class yet, but could very well soon be. And now Fluke and other high end measurement device manufacturers are getting chased too it seems.Anyone heard about this company, seen any reviews of their equipment or maybe tried them? Any insight in prices?

author: picburner
author_rank: Frequent Contributor
timestamp: October 18, 2024, 04:37:09 pm
content: The TH1960 amplifier is also planned (but it is not listed yet) equivalent to the Fluke 5725A....

author: manganin
author_rank: Regular Contributor
timestamp: October 20, 2024, 10:16:55 am
content: "732B""732C" (0.1V instead of the 1.018V output)

author: guenthert
author_rank: Frequent Contributor
timestamp: October 22, 2024, 08:14:23 am
content: Pity that@zlymexisn't active here anymore. Would be interesting what he'd say about those.

author: manganin
author_rank: Regular Contributor
timestamp: October 22, 2024, 10:22:17 am
content: As expected, the specifications have been copied from the Fluke 732C.

author: Nominal Animal
author_rank: Super Contributor
timestamp: October 22, 2024, 10:46:08 am
content: I just can't get over the name. Childish – I know! – buttunkio= dungheap, literally.(I think it's actually a derivative of the company original name, Tong Ren Co. Ltd., "Colleagues" or some such. They do use the spelling "TUNKAI" in theirAbout Uspage.)Although I have no experience with proper metrology equipment (outside physics labs tools), the fact that their focus is in high-end Chinese metrology users is in my opinion a promising sign. What the actual performance is, will have to be properly tested by someone with the equipment and expertise.

author: iMo
author_rank: Super Contributor
timestamp: October 22, 2024, 11:46:23 am
content: Quote

author: aronake
author_rank: Frequent Contributor
timestamp: November 18, 2024, 02:08:30 pm
content: They have a page on alibaba.https://tunkia.en.alibaba.com/index.html?spm=a2700.shop_index.88.11.390e48a8imLVdIPrices seems quite random tough.The Fluke 732c "inspired" voltage standard for instance have a price from 30K to 120K USD....https://www.alibaba.com/product-detail/TUNKIA-TH0100-TH0104-DC-voltage-reference_1600896266644.html?spm=a2700.shop_plgr.41413.7.ea3f7121CWbbgxStill lots of cool equipment! And very impressive a company with 400 employees claimed on the webpage has been able to design so many very specialized types of equipment. Real life performance a bit of an unknown though.

author: aronake
author_rank: Frequent Contributor
timestamp: October 12, 2025, 03:41:45 am
content: Seems East Tester is up to making a multifunction calibrator now. Lots of things happening!https://www.alibaba.com/product-detail/ET3000-2A-multimeter-calibrator-tester-can_1601275798263.htmlIts not on their webpage though. And very limited information avilable. If price of around 2.900 USD is correct it should be a shock to the calibrator market.

author: aronake
author_rank: Frequent Contributor
timestamp: October 12, 2025, 03:54:19 am
content: Here is the data sheet for TH1950:https://www.avtekconsulting.com/wp-content/uploads/2024/09/Tunkia-TH1950_High-Precision-Multi-Function-Calibrator.pdfClaim:- 3.5 ppm uncertanity for 1 year at 10V and 20V range.- 50mA output up to 200V AC and DC- 1K, 1.9K, 10K and 10K resistance uncertanity 6.5 ppm at 1 yearThat is some pretty bold claims.

author: danno_cj
author_rank: Contributor
timestamp: October 12, 2025, 12:41:52 pm
content: ET3000-2A price for one piece is 3500 USD. If you buy more pieces will be cheaper. These prices are probably without shipping, tax, Vat, brokerage fee which will bring the cost to another level. This model is good enough for 3.5 and 4.5 multimeters. For more digits other tool and more money are needed.

author: MiDi
author_rank: Frequent Contributor
timestamp: October 14, 2025, 03:44:51 pm
content: Tunkia are more expensive than Fluke

author: aronake
author_rank: Frequent Contributor
timestamp: October 15, 2025, 10:02:42 am
content: Quote from: MiDi on October 14, 2025, 03:44:51 pmHave you seen any actual prices and someone that really sell them?

author: aronake
author_rank: Frequent Contributor
timestamp: October 15, 2025, 10:03:46 am
content: Quote from: danno_cj on October 12, 2025, 12:41:52 pmI contacted East Tester on their Facebook page and got to know that they had discovered some issues and currently do not have it for sale. Whatever that now means....

author: MiDi
author_rank: Frequent Contributor
timestamp: October 15, 2025, 03:20:32 pm
content: Quote from: aronake on October 15, 2025, 10:02:42 amJust mailed them and asked for a quote nearly one year ago:TH0330 ( whole set ): $50000 USDTH0100: $30000 USDTH1950: $110000 USD

author: aronake
author_rank: Frequent Contributor
timestamp: October 15, 2025, 05:46:45 pm
content: Quote from: MiDi on October 15, 2025, 03:20:32 pmThats rather crazy! Max half or maybe 1/3 of Fluke prices would be reasonable for something rather unknown and not long term proven. They may do super good stuff, but to justify Fluke prices would need very long term proof of stability in "production environment" and building reputation from that. Then start to increase prices.

author: guenthert
author_rank: Frequent Contributor
timestamp: October 16, 2025, 03:29:29 pm
content: Quote from: aronake on October 15, 2025, 05:46:45 pmThat are we-are-not-prepared-to-deal-with-foreigners-but-do-not-want-to-admit-that prices.

author: GigaJoe
author_rank: Frequent Contributor
timestamp: October 18, 2025 02:07:49 am
content: interesting ..TUNKIA TD1860 US $17,681.06https://www.aliexpress.com/item/1005009290198756.htmlTUNKIA TH1950 US $141,099.86https://www.aliexpress.com/item/1005009290343258.htmlin some countries you forced to use a specific equipment from a government bake "approved" list , and on the top of it, a "certify" company only allow to sell such equipment. So eventually by thermodynamic law of free market , price on equipment bubbling over the roof ... that the case we see , i think ...