TIS Capillary Electrode, API 2000, QTRAP Back Catalog number: CTS-21212 Availability: In the manufacturer's stock Price on request - + Recommended PH58 pH/ORP/Temp waterproof tester, -2.00 to 16.00 pH Price on request HI 98308 Water Purity Tester, 0.0 to 99.9mS/cm Price on request MW402 TDS meter MW402 Price on request