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 TH310 Stick thermometer TH310 Price on request PH600 pH tester with 1 point calibration, ±0.2 pH accura Price on request MW803 pH/EC/TDS/Temp tester MW803 Price on request