The Greisinger GMH 3451 multi tester is a handheld device designed for environmental testing, measuring TDS, conductivity, salinity, and temperature. It is ideal for water quality analysis, freshwater quality analysis, and waste water testing. Typical applications include monitoring fish tanks, pool water, ponds, and swimming pool water. https://elecena.pl/product/28790253/greisinger-603924-gmh-3451-multitester-tds-cond-salinity-temp-logger 2025-05-23 https://elecena.pl/product/28790253/greisinger-603924-gmh-3451-multitester-tds-cond-salinity-temp-logger 2026-07-11