EC/TDS/Temp waterproof tester EC59 Back Catalog number: EC59 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended PH56 pH/Temp waterproof tester pH56 Price on request MW101 Portable pH meter, 0.00 to 14.00pH, 2point cal. Price on request HI 98308 Water Purity Tester, 0.0 to 99.9mS/cm Price on request