TDS meter MW401 Back Catalog number: MW401 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended MI806 Portable meter pH/EC/TDS/Temp Mi806 Price on request MW803 pH/EC/TDS/Temp tester MW803 Price on request PH55 pH/Temp waterproof tester, -2.0 to 16.0 pH Price on request