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 4090010005 DORP1 Pocket ORP Tester 1.DORP1Meter (battery pre 133,25 € PH58 pH/ORP/Temp waterproof tester, -2.00 to 16.00 pH Price on request 18901143 DEC1-S Cond sensor 34,13 €