pH tester pHep® 4 Back Catalog number: HI98127 Manufacturer: Hanna Instruments Czech Availability: Currently unavailable Price on request - + Recommended HI991001 Přenosný přístroj na měření pH/°C Price on request MW150 pH/ORP/Temp Bench Meter, -2.00-20.00 pH, ±2000.0mV, -20.0-120.0 °C Price on request CD600 TDS tester with ATC, range: 0 - 1990 ppm Price on request