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 MC120 pH monitor MC120 Price on request PH55 pH/Temp waterproof tester, -2.0 to 16.0 pH Price on request MI151 pH/ORP/Temp combined bench meter Mi151 Price on request