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 HI98127 pH tester pHep® 4 Price on request MW600 Dissolved oxygen meter MW600 Price on request MW803 pH/EC/TDS/Temp tester MW803 Price on request