pH tester pHep® 4 Back Catalog number: HI98127 Manufacturer: Hanna Instruments Czech Availability: Currently unavailable Price on request - + Recommended MW150 pH/ORP/Temp Bench Meter, -2.00-20.00 pH, ±2000.0mV, -20.0-120.0 °C Price on request MW804 pH/EC/TDS/Temp tester MW804 Price on request MI106 Combined portable meter pH/ORP/Temp Mi106 Price on request