0.1 pH Accuracy ORP Buffer Powder for Industrial Usage with OEM Customized Support in Fish Farming and Swimming Pools

YIERYI brand was established in 2016, specializing in precision measurement instruments including refractometers, pH meters, TDS/EC pens, soil meters, and digital scales. We prioritize accuracy by selecting high-precision imported chips from Taiwan and South Korea, rather than opting for lower-cost alternatives. All products undergo rigorous testing, calibration, and quality verification before market release. Our mission is to bring reliable, healthy measurement solutions to households worldwide while promoting the "world love, China made" vision.