YIERYI

Established in Shenzhen, the company began its journey focusing on R&D, production, and sales of high-quality, portable testing instruments for water, soil, grain moisture, and temperature.

As a leading manufacturer of precision measurement instruments, YIERYI specializes in a diverse range of high-quality products, including portable and digital refractometers, pen-style and online pH meters, DO meters, TDS meters, ORP meters, EC meters, chlorine testers, water quality testers, soil analyzers, and temperature and humidity recorders.