TDS tester with ATC, range: 1 - 999 ppm Back Catalog number: CD97 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended PH55 pH/Temp waterproof tester, -2.0 to 16.0 pH Price on request CTS-21102 APCI Capillary Electrode, API 4000, API 5000, 4500 Price on request HI98127 pH tester pHep® 4 Price on request