EC/TDS/Temp waterproof tester EC59 Back Catalog number: EC59 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended MW500 ORP meter MW500 Price on request PH58 pH/ORP/Temp waterproof tester, -2.00 to 16.00 pH Price on request PH55 pH/Temp waterproof tester, -2.0 to 16.0 pH Price on request