Water Purity Tester, 0.0 to 99.9mS/cm Back Catalog number: HI 98308 Manufacturer: Hanna Instruments Czech Availability: Currently unavailable Price on request - + Recommended EC59 EC/TDS/Temp waterproof tester EC59 Price on request 4090010107 DCD10 Portable Cond/DO Meter (Polarographic Type/C 777,31 € 4090010101 DORP10 Portable ORP Meter(Color screen) 1.DORP10M 592,24 €