pH tester pHep® 4 Back Catalog number: HI98127 Manufacturer: Hanna Instruments Czech Availability: Currently unavailable Price on request - + Recommended 4090010005 DORP1 Pocket ORP Tester 1.DORP1Meter (battery pre 3 280,00 Kč MW804 pH/EC/TDS/Temp tester MW804 Price on request CD611 Conductivity tester with ATC, 0 - 20000 µS/cm Price on request