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 TH310 Stick thermometer TH310 Price on request CD97 TDS tester with ATC, range: 1 - 999 ppm Price on request EC59 EC/TDS/Temp waterproof tester EC59 Price on request