TDS tester with ATC, range: 0 - 1990 ppm Back Catalog number: CD600 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended CD97 TDS tester with ATC, range: 1 - 999 ppm Price on request PH56 pH/Temp waterproof tester pH56 Price on request PH55 pH/Temp waterproof tester, -2.0 to 16.0 pH Price on request