I found this page from Amazon.
https://www.amazon.com/stores/page/B9251A0F-3631-4ECF-9683-61E661DFE3C2?ingress=0&visitId=4039b366-8a78-4536-bbd2-45e57f4f1b7aReading all the google results, it looks like the company is a government sponsored company. I don't know the different between a private company from a state sponsored company. Does it mean they have more money and less regulation to make the meters?
Office Address: Eastern Technology Industrial Park, Jintang Road, Jinfeng Economic Development Zone, Zhangzhou City, Fujian Province, China
Eastern Technology Group
Zhangzhou Eastern was set up in 1993. In its development of recent years, the business keeps going up rapidly. With the combined efforts of Eastern team, our company has become one of the leading manufacturers of instruments and meters recently.
main products
Our main products contain digital multimeters, metal detectors, Automotive tester, all of which have advantage in both domestic and overseas markets.
Certification and quality
Based on the ISO9001 International Quality System, most of our products are exported to Europe and America with approvals of CE, GS, ETL, FDA and FCC.
Eastern technology group passed ISO9001:2008 and insists on "6S" system.Our QC Dept control and stabilize the product quality by advanced quality inspection equipments and quality management method.
OEM&ODM Manufacturer
Eastern technology group is a "State High and New Technology Enterprise" which specializes in research,manufature and sales of test &measurement instruments.
Eastern technology group has 30 production lines, and departments of R&D,Marketing,Layout,Material Control,Purchase,Production Schedule,Engineering,QC,etc.,and workshops of tooling,plastic injection,SMT,Chip,assembly workshop,blister center,silk-screen workshop,etc.