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 PH600 pH tester with 1 point calibration, ±0.2 pH accura Price on request MI306 Automatic combined EC/TDS/NaCl/Temp meter Mi306 Price on request ORP57 ORP/Temp waterproof tester ORP57 Price on request