pH/Temp waterproof tester, -2.0 to 16.0 pH Back Catalog number: PH55 Manufacturer: MILWAUKEE ELECTRONICS Availability: 3 weeks Price on request - + Recommended 4090010107 DCD10 Portable Cond/DO Meter (Polarographic Type/C 19 530,00 Kč 4090010101 DORP10 Portable ORP Meter(Color screen) 1.DORP10M 14 880,00 Kč CTS-21212 TIS Capillary Electrode, API 2000, QTRAP Price on request