Greisinger's GMH 5430-400 multi tester measures conductivity, salinity, TDS, and temperature with precision. It is an essential tool for environmental testing and water quality analysis, including freshwater and wastewater testing. Typical applications include fish tank, pool, pond, and swimming pool water testing. https://elecena.pl/product/28790256/greisinger-603918-gmh-5430-400-multi-tester-conductivity-tds-waterproof 2025-05-23 https://elecena.pl/product/28790256/greisinger-603918-gmh-5430-400-multi-tester-conductivity-tds-waterproof 2026-07-11