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 4090010109 DPCD10 Portable pH/Cond/DO Meter (Polarographic Ty 1 141,49 € 4090010005 DORP1 Pocket ORP Tester 1.DORP1Meter (battery pre 130,55 € CD97 TDS tester with ATC, range: 1 - 999 ppm Price on request