Extech produces the DO700, a versatile meter designed for measuring oxygen, conductivity, TDS, and pH levels. Its main features include high-accuracy sensors and suitability for various environmental testing applications. Typical uses include freshwater quality analysis, waste water testing, and pool water assessment. https://elecena.pl/product/28942483/extech-do700-kit-do-meter-9-in-1-ph-do-conductivity-tds-temp-salt 2025-06-12 https://elecena.pl/product/28942483/extech-do700-kit-do-meter-9-in-1-ph-do-conductivity-tds-temp-salt 2026-07-13 https://elecena.pl/product/28942483/extech-do700-kit-do-meter-9-in-1-ph-do-conductivity-tds-temp-salt 2026-08-05 https://elecena.pl/product/28942483/extech-do700-kit-do-meter-9-in-1-ph-do-conductivity-tds-temp-salt 2026-08-29