TDS meter MW401 Back Catalog number: MW401 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended MI5559 pH55 (pH/Temp waterproof tester Mi5559 Price on request EC59 EC/TDS/Temp waterproof tester EC59 Price on request CD611 Conductivity tester with ATC, 0 - 20000 µS/cm Price on request