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 MC120 pH monitor MC120 Price on request PH600 pH tester with 1 point calibration, ±0.2 pH accura Price on request MW101 Portable pH meter, 0.00 to 14.00pH, 2point cal. Price on request