pH tester pHep® 4 Back Catalog number: HI98127 Manufacturer: Hanna Instruments Czech Availability: Currently unavailable Price on request - + Recommended MA955 Solenoid valve with 1.5meter cable incl. Fittings Price on request MW801 Smart pH/EC/TDS combined meter MW801 Price on request TH310 Stick thermometer TH310 Price on request