EC/TDS/Temp waterproof tester EC59 Back Catalog number: EC59 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended MW100 pH meter MW100 Price on request CD600 TDS tester with ATC, range: 0 - 1990 ppm Price on request ORP57 ORP/Temp waterproof tester ORP57 Price on request